- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16J - Pistonscylinderspressure vessels in generalsealings
- F16J 15/3236 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips with at least one lip for each surface, e.g. U-cup packings
Patent holdings for IPC class F16J 15/3236
Total number of patents in this class: 236
10-year publication summary
|
29
|
44
|
24
|
33
|
16
|
26
|
17
|
26
|
10
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saint-Gobain Performance Plastics Corporation | 1038 |
24 |
| NOK Corporation | 2215 |
17 |
| Trelleborg Sealing Solutions Germany GmbH | 191 |
9 |
| Schaeffler Technologies AG & Co. KG | 9802 |
8 |
| BAL Seal Engineering, LLC | 107 |
8 |
| Carl Freudenberg KG | 1364 |
7 |
| ElringKlinger AG | 535 |
7 |
| Robert Bosch GmbH | 42596 |
6 |
| Caterpillar Inc. | 9521 |
6 |
| NTN Corporation | 4980 |
5 |
| Hitachi Astemo, Ltd. | 6382 |
5 |
| Aktiebolaget SKF | 2931 |
4 |
| Fisher Controls International LLC | 1485 |
4 |
| KYB Corporation | 1353 |
4 |
| SRI Energy Inc. | 33 |
4 |
| ETI Group | 13 |
4 |
| Hitachi Automotive Systems, Ltd. | 3958 |
3 |
| ZF Friedrichshafen AG | 7137 |
3 |
| A.W. Chesterton Company | 89 |
3 |
| Brembo S.p.A. | 449 |
3 |
| Other owners | 102 |