Maxton Engineering Ltd.

The Hong Kong Special Administrative Region of the People's Republic of China

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2026 June 1
2026 (YTD) 3
2025 1
2024 1
2023 7
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IPC Class
B62B 3/02 - Hand carts having more than one axis carrying transport wheelsSteering devices thereforEquipment therefor involving parts being adjustable, collapsible, attachable, detachable, or convertible 7
B62B 5/06 - Hand moving equipment, e.g. handle bars 4
A47C 4/28 - Folding chairs with flexible coverings for the seat or back elements 3
A45B 23/00 - Other umbrellas 2
A47C 3/021 - Rocking chairs having elastic frames 2
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Status
Pending 5
Registered / In Force 18
Found results for  patents

1.

COLLAPSIBLE SHELTER WITH CENTRAL DRIVE ACTUATION FOR SYNCHRONIZED EXPANSION/RETRACTION IN UNISON

      
Application Number 19386146
Status Pending
Filing Date 2025-11-11
First Publication Date 2026-06-18
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A collapsible shelter having a folding frame assembly, in which a plurality of leg assemblies are disposed at the corners. A central drive mechanism is disposed at a center of the perimeter, and a framework of a plurality of actuation members operatively coupled to the central drive mechanism and to the leg assemblies. The actuation members are structured and configured to move the leg assemblies towards and away from the central drive mechanism; and a canopy supported on the folding frame assembly. The central drive mechanism is configured to operate to simultaneously actuate the plurality of actuation members to move the leg assemblies in synchronization, thereby to expand and collapse the folding frame assembly in unison.

IPC Classes  ?

  • E04H 15/50 - Supporting means, e.g. frames collapsible, e.g. breakdown type foldable, i.e. having pivoted or hinged means lazy-tongs type

2.

COLLAPSIBLE UMBRELLA WITH QUICK CONNECT RIBS TO HUBS

      
Application Number 19050106
Status Pending
Filing Date 2025-02-10
First Publication Date 2026-02-26
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A collapsible umbrella having a support structure, a frame structure supported by the support structure, which includes: a support hub assembly; a plurality of long ribs, wherein each long rib has an end removably coupled to an upper hub at an upper end of the support hub assembly; a plurality of short rib sections, each comprising a first end pivotally coupled to a point along the long rib and a second end removably coupled to a lower hub at a lower end of the support hub assembly. The upper and lower hubs each has a plurality of hub connectors arranged around the circumference of the hub. The hub connectors each has a coupling slot and a dove tail groove or channel at the end of the slot towards the axis of the upper hub. The coupling slot releasably receives a pivot coupler pivotally attached to an end of a rib.

IPC Classes  ?

3.

MODULAR TOWER FAN

      
Application Number 19288879
Status Pending
Filing Date 2025-08-01
First Publication Date 2026-01-29
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A modular tower fan comprising a fan module having a fan housing wherein the fan housing comprises a blower fan and bearings supporting the blower fan for rotation within the fan housing, and a fan gear provided at a bottom of the fan housing; and a drive module having a drive housing, wherein the drive module comprises a drive motor, control circuitry, wirings and other electrical components within the drive housing, and a drive gear at a top of the drive housing; wherein the fan housing of the fan module is removably/detachably attached to the drive housing of the drive module with the fan gear operational coupled to the drive gear for rotation, and wherein the fan module is detachable from the drive module for cleaning mode, shipping or storage with the fan gear decoupled from the drive gear.

IPC Classes  ?

  • F04D 29/60 - MountingAssemblingDisassembling
  • F04D 17/04 - Radial-flow pumps specially adapted for elastic fluids, e.g. centrifugal pumpsHelico-centrifugal pumps specially adapted for elastic fluids having non-centrifugal stages, e.g. centripetal of transverse-flow type
  • F04D 25/06 - Units comprising pumps and their driving means the pump being electrically driven

4.

Extended collapsible wagon

      
Application Number 17692160
Grant Number 12263876
Status In Force
Filing Date 2022-03-10
First Publication Date 2025-04-01
Grant Date 2025-04-01
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

An extended collapsible wagon including a handle, a first supporting frame, and a second supporting frame. The first supporting frame and the second supporting frame are connected with a pair of connecting members. Each connecting member comprises three scissor hinge structures. A folding base frame is provided below the receiving space defined between the first and second supporting frames and the pair of connecting members, to provide a sturdy support structure for the flexible container. The folding base frame includes first and second base frame panels located below respective one of two adjacent scissor hinge structures and a third base frame panel having two sub-panels pivotally connected to fold below the third scissor hinge structure. The first base frame is pivotally connected to the second base frame panel, and the second base frame is pivotally connected to the third base frame, so as to form the foldable base frame.

IPC Classes  ?

  • B62B 3/02 - Hand carts having more than one axis carrying transport wheelsSteering devices thereforEquipment therefor involving parts being adjustable, collapsible, attachable, detachable, or convertible
  • B62B 3/00 - Hand carts having more than one axis carrying transport wheelsSteering devices thereforEquipment therefor
  • B62B 5/06 - Hand moving equipment, e.g. handle bars

5.

Collapsible wagon with foldable handle and basket extension

      
Application Number 18337351
Grant Number 12617442
Status In Force
Filing Date 2023-06-19
First Publication Date 2024-02-29
Grant Date 2026-05-05
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A collapsible utility wagon includes a push-back function device assembly, and a collapsible utility wagon body assembly, wherein the push-back function device assembly is provided behind the collapsible utility wagon body assembly. The push-back function device assembly includes a rear wheel frame assembly, a front handlebar strut assembly, two rear handlebar strut assemblies, a lock device assembly, a handlebar assembly, a lock hook, a lock column, a mesh bag and rear wheels. The push-back function device assembly is provided behind the collapsible utility wagon body assembly, so that a sheet-like collapsible wagon is enabled to implement a push-back function instead of being able to be pulled only forward as that of the prior art. The collapsible utility wagon has a good link ability, and can be unfolded or collapsed with a simple process and a minimal effort with ease of use.

IPC Classes  ?

  • B62B 3/00 - Hand carts having more than one axis carrying transport wheelsSteering devices thereforEquipment therefor
  • B62B 3/02 - Hand carts having more than one axis carrying transport wheelsSteering devices thereforEquipment therefor involving parts being adjustable, collapsible, attachable, detachable, or convertible
  • B62B 5/06 - Hand moving equipment, e.g. handle bars

6.

UMBRELLA ASSEMBLY HAVING A MODULARIZED DRIVE MODULE

      
Application Number 18296371
Status Pending
Filing Date 2023-04-05
First Publication Date 2023-11-30
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

An umbrella assembly with a drive module assembly that comprises a plurality of modularized units, including a separate power supply unit and a separate drive unit. The modularized units are removably/detachably attached in a stacked structure of the overall drive module using quick connect couplings. The interfacing top and bottom sides of the adjacent modularized units are provided with complementary electrical connection terminals. The drive module is structurally and operatively coupled to the frame structure of the canopy of the umbrella assembly to operate to open/extend or close/collapse the canopy between an opened configuration and a closed configuration, by varying the distance between the upper hub and the lower hub of the frame structure.

IPC Classes  ?

7.

Shade assembly for a wagon

      
Application Number 18191840
Grant Number 12448806
Status In Force
Filing Date 2023-03-28
First Publication Date 2023-11-30
Grant Date 2025-10-21
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A shade assembly for a wagon having a collapsible shade frame that transitions between an assembled state for providing shade and a disassembled state for stowing. The shade frame has at least a pair of long rods each having a distal end and a mounting end removably mountable to a mounting holder on a frame of the wagon. The long rods each has a plurality of rod sections in the disassemble state, and the rod sections are removably connected end-to-end to form corresponding long rods arranged in a cross configuration to form a support frame in the assembled state. A canopy comprising a shade material is supported on the support frame of the shade frame in the assembled state. Under the weight of the canopy, the shade frame is cantilevered at the mounting ends of the long rods by the mounting holder.

IPC Classes  ?

  • E04H 15/06 - Tents at least partially supported by vehicles
  • B62B 3/02 - Hand carts having more than one axis carrying transport wheelsSteering devices thereforEquipment therefor involving parts being adjustable, collapsible, attachable, detachable, or convertible
  • B62B 5/00 - Accessories or details specially adapted for hand carts
  • E04H 15/40 - Supporting means, e.g. frames arch-shaped type flexible
  • E04H 15/64 - Tent or canopy cover fastenings
  • E04H 15/32 - Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds

8.

Modular tower fan

      
Application Number 18175386
Grant Number 12378973
Status In Force
Filing Date 2023-02-27
First Publication Date 2023-10-19
Grant Date 2025-08-05
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A modular tower fan comprising a fan module having a fan housing wherein the fan housing comprises a blower fan and bearings supporting the blower fan for rotation within the fan housing, and a fan gear provided at a bottom of the fan housing; and a drive module having a drive housing, wherein the drive module comprises a drive motor, control circuitry, wirings and other electrical components within the drive housing, and a drive gear at a top of the drive housing; wherein the fan housing of the fan module is removably/detachably attached to the drive housing of the drive module with the fan gear operational coupled to the drive gear for rotation, and wherein the fan module is detachable from the drive module for cleaning mode, shipping or storage with the fan gear decoupled from the drive gear.

IPC Classes  ?

  • F04D 17/04 - Radial-flow pumps specially adapted for elastic fluids, e.g. centrifugal pumpsHelico-centrifugal pumps specially adapted for elastic fluids having non-centrifugal stages, e.g. centripetal of transverse-flow type
  • F04D 25/06 - Units comprising pumps and their driving means the pump being electrically driven
  • F04D 29/60 - MountingAssemblingDisassembling

9.

SMART TRASH CAN

      
Application Number 18179273
Status Pending
Filing Date 2023-03-06
First Publication Date 2023-10-19
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A smart trash can having a housing with a front housing door pivotable to tilt to a tilted open position. A bucket is attached to the housing door to tilt along with tilting of the housing door. A trash bag liner cartridge is supported below a housing lid within a crown of the housing. The liner cartridge stores a supply of liner material for trash bag replacements. A bag sealing and cutting mechanism seals a top opening of a filled trash bag and separates the liner material supplied from the liner cartridge upon tilting the housing door to the tilted open position, and seals an open bottom end of the liner material supplied from the liner cartridge. A bag relining mechanism lines the interior walls of the bucket with the liner material upon removal of the filled trash bag and closure of the housing door from its tilted open position.

IPC Classes  ?

  • B65F 1/06 - Refuse receptacles with removable inserts with flexible inserts, e.g. bags or sacks
  • B65F 1/14 - Other constructional features
  • B65F 1/16 - Lids or covers

10.

Collapsible wagon tailgate

      
Application Number 18190096
Grant Number 12552432
Status In Force
Filing Date 2023-03-26
First Publication Date 2023-10-12
Grant Date 2026-02-17
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A collapsible wagon with a foldable/collapsible tailgate frame assembly coupled to a collapsible wagon frame assembly. The collapsible wagon frame assembly has a collapsible frame having a rear frame. The tailgate frame assembly has a tailgate platform having a pair of side rails, each pivotally connected to a corresponding bottom portion near the base of the rear frame, and a slider slidable along the corresponding side rails. A wheel support frame has ends each pivotally connected to a corresponding one of the side rails. A first connection member is pivotally connected to the slider and a wheel support frame, and a second connection member is pivotally connected to the slider and the rear frame. The tailgate frame assembly transitions between a collapsed state and an extended state with each slider sliding along a corresponding side rail.

IPC Classes  ?

  • B62B 3/02 - Hand carts having more than one axis carrying transport wheelsSteering devices thereforEquipment therefor involving parts being adjustable, collapsible, attachable, detachable, or convertible

11.

Collapsible umbrella with quick connect rib sections

      
Application Number 17957857
Grant Number 12376658
Status In Force
Filing Date 2022-09-30
First Publication Date 2023-09-28
Grant Date 2025-08-05
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

An umbrella with a frame structure supported by a support structure. The frame structure has a support hub, a plurality of long ribs each comprising a first rib section and a second rib section releasably connected by a pivot rib coupler, wherein each long rib has an end releasably or fixedly coupled to an upper end of the support hub. The frame structure further having a plurality of short rib sections in the form of a plurality of third rib sections, each comprising a first end releasable coupled to the pivot rib coupler and a second end releasably or fixedly coupled to a lower end of the support hub, wherein each pivot rib coupler is configured to pivot the third rib section relative to the first and second rib sections that are releasably coupled to the pivot rib coupler.

IPC Classes  ?

  • A45B 25/02 - Umbrella frames
  • A45B 19/10 - Special folding or telescoping of umbrellas with collapsible ribs

12.

Collapsible shelter with central drive actuation for synchronized expansion/retraction in unison

      
Application Number 17968814
Grant Number 12467275
Status In Force
Filing Date 2022-10-19
First Publication Date 2023-06-08
Grant Date 2025-11-11
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A collapsible shelter having a folding frame assembly, in which a plurality of leg assemblies are disposed at the corners. A central drive mechanism is disposed at a center of the perimeter, and a framework of a plurality of actuation members operatively coupled to the central drive mechanism and to the leg assemblies. The actuation members are structured and configured to move the leg assemblies towards and away from the central drive mechanism; and a canopy supported on the folding frame assembly. The central drive mechanism is configured to operate to simultaneously actuate the plurality of actuation members to move the leg assemblies in synchronization, thereby to expand and collapse the folding frame assembly in unison.

IPC Classes  ?

  • E04H 15/50 - Supporting means, e.g. frames collapsible, e.g. breakdown type foldable, i.e. having pivoted or hinged means lazy-tongs type

13.

Rocker chair

      
Application Number 17525806
Grant Number 11607043
Status In Force
Filing Date 2021-11-12
First Publication Date 2022-06-09
Grant Date 2023-03-21
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A rocker chair having a frame and a longitudinal spring member extending from the frame, at or near a surface on which the chair is supported for rocking motion. The spring member includes an anchored portion anchored to the frame, and an extended portion extending from the anchored portion and is free to flex or bend against spring bias of the extended portion, wherein the extended portion is bendable upward from the support surface against spring bias of the extended portion. The frame of the rocker chair may be collapsible to convert from a collapsed configuration for stowing, to an extended configuration for seating a person. The spring member may include an anchored portion anchored to at least a portion of a bottom of the frame, and an extended portion extending from the anchored portion, wherein the extended portion is bendable against spring bias of the extended portion.

IPC Classes  ?

  • A47C 3/021 - Rocking chairs having elastic frames
  • A47C 4/28 - Folding chairs with flexible coverings for the seat or back elements

14.

Collapsible cart with fabric in receiving space

      
Application Number 17327411
Grant Number 11932299
Status In Force
Filing Date 2021-05-21
First Publication Date 2022-02-10
Grant Date 2024-03-19
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A collapsible cart may include a first frame member, a second frame member, a front spacing member, a rear spacing member, and a base member. The front and rear spacing members are configured to separate the first frame member and the second frame member for a predetermined distance to create a receiving space for the cart when it is in a fully open status. The base member may have a plurality of base connecting bars and a center unit that has four opening to pivotally engage with the base connecting bars, and the center unit and the four base connecting bars are positioned on the same plane surface when the cart is in a fully open status. The user can start collapsing the cart by simply pushing down the center unit to disengage the center units with the base connecting bars.

IPC Classes  ?

  • B62B 3/02 - Hand carts having more than one axis carrying transport wheelsSteering devices thereforEquipment therefor involving parts being adjustable, collapsible, attachable, detachable, or convertible
  • B62B 5/06 - Hand moving equipment, e.g. handle bars

15.

Window fan and method for quickly assembling and disassembling the same

      
Application Number 16936376
Grant Number 11788741
Status In Force
Filing Date 2020-07-22
First Publication Date 2021-10-07
Grant Date 2023-10-17
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A window fan may include a main body, one or more front fan covers, one or more rear fan covers, one or more fans covered by both the front and rear fan covers, and a control panel. In one embodiment, the front and rear fans can be easily detached from the main body, so the fan can be taken out for cleaning purposes. The control panel can be used to control the wind direction, the magnitude, temperature, etc. of the fans. In one embodiment, the control panel can be operated manually. In another embodiment, the control panel can be operated through a remote control. In a further embodiment, the control panel can be operated through an electronic device, such as a cell phone, a tablet, a computer, etc. via WIFI, Bluetooth or other communication schemes.

IPC Classes  ?

  • F24F 7/013 - Ventilation with forced flow using wall or window fans, displacing air through the wall or window
  • F04D 29/64 - MountingAssemblingDisassembling of axial pumps
  • F24F 11/58 - Remote control using Internet communication
  • F24F 11/89 - Arrangement or mounting of control or safety devices
  • F04D 29/40 - CasingsConnections for working fluid

16.

Collapsible support base for furniture with a flexible user support platform

      
Application Number 17169384
Grant Number 11793309
Status In Force
Filing Date 2021-02-05
First Publication Date 2021-08-26
Grant Date 2023-10-24
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A foldable support base for a foldable furniture with a flexible user support platform, in which a support frame has two side frame members, each pivotally connected to a load pivot joint along a load member with a load section extending beyond the load pivot joint which is pivotable about the first load pivot joint towards a center of the support frame. The load sections of the load members are configured for removably attaching a flexible user support platform therebetween. A load on the flexible user support platform results in a force component pulling on the load sections of the load members to cause the load members to pivot about the respective load pivot joints in a direction towards the flexible user support platform, thereby biasing to keep the side frame members to be spaced apart to maintain the support base in an extended configuration.

IPC Classes  ?

  • A47C 1/16 - Seats detachably mounted on stadium benches
  • A47C 4/28 - Folding chairs with flexible coverings for the seat or back elements
  • A47C 17/72 - Travelling or camp beds the bed frame being foldable about a horizontal axis having cross legs

17.

Rocker chair

      
Application Number 16843835
Grant Number 11172762
Status In Force
Filing Date 2020-04-08
First Publication Date 2020-10-15
Grant Date 2021-11-16
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A rocker chair having a frame and a longitudinal spring member extending from the frame, at or near a surface on which the chair is supported for rocking motion. The spring member includes an anchored portion anchored to the frame, and an extended portion extending from the anchored portion and is free to flex or bend against spring bias of the extended portion, wherein the extended portion is bendable upward from the support surface against spring bias of the extended portion. The frame of the rocker chair may be collapsible to convert from a collapsed configuration for stowing, to an extended configuration for seating a person. The spring member may include an anchored portion anchored to at least a portion of a bottom of the frame, and an extended portion extending from the anchored portion, wherein the extended portion is bendable against spring bias of the extended portion.

IPC Classes  ?

  • A47C 3/021 - Rocking chairs having elastic frames
  • A47C 4/28 - Folding chairs with flexible coverings for the seat or back elements

18.

Foldable chair cart

      
Application Number 16203488
Grant Number 10610025
Status In Force
Filing Date 2018-11-28
First Publication Date 2020-04-07
Grant Date 2020-04-07
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A collapsible/foldable and portable chair that can be transformed or converted between a chair and a cart for carrying items, and can be collapsed to a compact form for stowing. The chair cart includes a foldable chair having a seat base, a seat back pivotally attached to the seat base, and a leg rest pivotally attached to the seat base. In the collapsed configuration, the seat base, the seat back and the leg rest are folded to collapse the chair into a compact form. In the chair configuration, the seat base, seat back and the leg rest are unfolded to extend the chair to provide support surfaces for the person's back, buttock and legs. In the cart configuration, the leg rest is folded upwards with respect to the seat base to define a storage space above the seat base and between the foot rest and the seat back.

IPC Classes  ?

  • A47C 13/00 - Convertible chairs, stools or benches
  • B62B 1/12 - Hand carts having only one axis carrying one or more transport wheelsEquipment therefor in which the load is intended to be transferred totally to the wheels involving parts being adjustable, collapsible, attachable, detachable, or convertible
  • A47C 1/14 - Beach chairs

19.

Collapsible wagon

      
Application Number 29625865
Grant Number D0879204
Status In Force
Filing Date 2017-11-13
First Publication Date 2020-03-24
Grant Date 2020-03-24
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

20.

Collapsible cart with fabric in receiving space

      
Application Number 16517522
Grant Number 11014592
Status In Force
Filing Date 2019-07-19
First Publication Date 2020-01-23
Grant Date 2021-05-25
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A collapsible cart may include a first frame member, a second frame member, a front spacing member, a rear spacing member, and a base member. The front and rear spacing members are configured to separate the first frame member and the second frame member for a predetermined distance to create a receiving space for the cart when it is in a fully open status. The base member may have a plurality of base connecting bars and a center unit that has four opening to pivotally engage with the base connecting bars, and the center unit and the four base connecting bars are positioned on the same plane surface when the cart is in a fully open status. The user can start collapsing the cart by simply pushing down the center unit to disengage the center units with the base connecting bars.

IPC Classes  ?

  • B62B 1/00 - Hand carts having only one axis carrying one or more transport wheelsEquipment therefor
  • B62B 3/02 - Hand carts having more than one axis carrying transport wheelsSteering devices thereforEquipment therefor involving parts being adjustable, collapsible, attachable, detachable, or convertible
  • B62B 5/06 - Hand moving equipment, e.g. handle bars

21.

Collapsible cart

      
Application Number 16045694
Grant Number 10435055
Status In Force
Filing Date 2018-07-25
First Publication Date 2019-10-08
Grant Date 2019-10-08
Owner Maxton Engineering Ltd (Hong Kong)
Inventor Zhu, Shou Qiang

Abstract

A collapsible cart may include a handle, a first supporting frame, and a second supporting frame. In one embodiment, the handle is movably secured at the first supporting frame, and the first supporting frame and the second supporting frame are connected with a connecting member. The connecting member may include a plurality of connecting units. In one embodiment, the collapsible cart further includes a fabric secured at a receiving space created by the supporting frames and the connecting members on both sides. It is important to note that when the cart is fully unfolded, the first and second connecting units are substantially perpendicular to the second supporting frame and the first supporting frame respectively to strengthen the connecting member.

IPC Classes  ?

  • B62B 3/02 - Hand carts having more than one axis carrying transport wheelsSteering devices thereforEquipment therefor involving parts being adjustable, collapsible, attachable, detachable, or convertible

22.

Combined foldable chair and cart

      
Application Number 29627614
Grant Number D0860572
Status In Force
Filing Date 2017-11-28
First Publication Date 2019-09-17
Grant Date 2019-09-17
Owner MAXTON ENGINEERING LTD. (Hong Kong)
Inventor Zhu, Shou Qiang

23.

Foldable chair with changeable seats

      
Application Number 29539417
Grant Number D0817014
Status In Force
Filing Date 2015-09-14
First Publication Date 2018-05-08
Grant Date 2018-05-08
Owner Maxton Engineering Ltd. (Hong Kong)
Inventor Zhu, Shou Qiang