• All sections
  • F - Mechanical engineeringlightingheatingweaponsblasting
  • F16F - Springsshock-absorbersmeans for damping vibration
  • F16F 13/18 - Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper characterised by the location or the shape of the equilibration chamber, e.g. the equilibration chamber surrounding the plastics spring or being annular

Patent holdings for IPC class F16F 13/18

Total number of patents in this class: 107

10-year publication summary

3
1
3
4
1
0
2
0
1
0
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Bridgestone Corporation
7283
34
Yamashita Rubber Kabushiki Kaisha
49
14
Tokai Rubber Industries, Ltd.
162
12
Toyo Tire & Rubber Co., Ltd.
470
7
Honda Motor Co., Ltd.
26684
6
Prospira Corporation
194
6
ContiTech Vibration Control GmbH
113
3
Sumitomo Riko Company Limited
1182
3
TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION)
12295
3
Bayerische Motoren Werke Aktiengesellschaft
15535
2
Audi AG
7601
2
BOGE Elastmetall GmbH
64
2
Hyundai Motor Company
25190
1
Kia Motors Corporation
7713
1
Komatsu Ltd.
4829
1
BeijingWest Industries, Co., Ltd.
158
1
Bell Helicopter Textron Inc.
955
1
ContiTech Luftfedersysteme GmbH
84
1
Peugeot Citroen Automobiles SA
1637
1
Textron Innovations Inc.
2549
1
Other owners 5