- All sections
- A - Human necessities
- A61F - Filters implantable into blood vesselsprosthesesdevices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stentsorthopaedic, nursing or contraceptive devicesfomentationtreatment or protection of eyes or earsbandages, dressings or absorbent padsfirst-aid kits
- A61F 13/536 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes having discontinuous areas of compression
Patent holdings for IPC class A61F 13/536
Total number of patents in this class: 282
10-year publication summary
28
|
24
|
18
|
29
|
23
|
24
|
25
|
22
|
15
|
14
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
The Procter & Gamble Company | 22000 |
105 |
Unicharm Corporation | 2881 |
35 |
Daio Paper Corporation | 1381 |
25 |
Essity Hygiene and Health Aktiebolag | 2048 |
17 |
Kao Corporation | 4979 |
14 |
Ontex Group NV | 165 |
12 |
DSG Technology Holdings Ltd. | 42 |
10 |
Uni-Charm Corporation | 603 |
9 |
Medline Industries, LP | 2352 |
9 |
Kimberly-clark Worldwide, Inc. | 5453 |
7 |
Kenvue Brands LLC | 969 |
5 |
Oji Holdings Corporation | 728 |
4 |
SCA Hygiene Products AB | 653 |
3 |
Sumitomo Seika Chemicals Co., Ltd. | 1042 |
3 |
Cornerstone Research Group, Inc. | 67 |
2 |
Lyv Life, Inc. | 28 |
2 |
Ontex BVBA | 56 |
2 |
Paul Hartmann AG | 784 |
2 |
Airlaid A/S | 3 |
2 |
Associated Hygienic Products LLC | 54 |
1 |
Other owners | 13 |