- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16J - Pistonscylinderspressure vessels in generalsealings
- F16J 15/3252 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
Patent holdings for IPC class F16J 15/3252
Total number of patents in this class: 182
10-year publication summary
|
20
|
23
|
23
|
27
|
24
|
19
|
10
|
9
|
16
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NOK Corporation | 2239 |
26 |
| Aktiebolaget SKF | 3005 |
13 |
| Carl Freudenberg KG | 1379 |
5 |
| Eagle Industry Co., Ltd. | 1143 |
5 |
| ElringKlinger AG | 544 |
5 |
| Schaeffler Technologies AG & Co. KG | 10297 |
4 |
| Dana Automotive Systems Group, LLC | 442 |
4 |
| ElringKlinger Kunststofftechnik GmbH | 27 |
4 |
| Fisher Controls International LLC | 1505 |
4 |
| Oetiker Schweiz AG | 203 |
4 |
| Garlock Sealing Technologies LLC | 143 |
3 |
| Saint-Gobain Performance Plastics Corporation | 1035 |
3 |
| Trelleborg Sealing Solutions Germany GmbH | 191 |
3 |
| Rtx Corporation | 9556 |
3 |
| NTN Corporation | 4973 |
2 |
| ABB Schweiz AG | 7139 |
2 |
| Freudenberg-NOK General Partnership | 161 |
2 |
| Freudenberg Sealing Technologies S.A.S. di Externa Italia S.r.l.u | 24 |
2 |
| Mitsubishi Hitachi Power Systems, Ltd. | 992 |
2 |
| National University Corporation Saitama University | 131 |
2 |
| Other owners | 84 |