- 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: 176
10-year publication summary
|
20
|
24
|
25
|
32
|
24
|
20
|
10
|
9
|
14
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NOK Corporation | 2201 |
26 |
| Aktiebolaget SKF | 2899 |
12 |
| Carl Freudenberg KG | 1356 |
5 |
| Eagle Industry Co., Ltd. | 1123 |
5 |
| Schaeffler Technologies AG & Co. KG | 9615 |
4 |
| Dana Automotive Systems Group, LLC | 426 |
4 |
| ElringKlinger AG | 527 |
4 |
| Fisher Controls International LLC | 1470 |
4 |
| Oetiker Schweiz AG | 182 |
4 |
| ElringKlinger Kunststofftechnik GmbH | 26 |
3 |
| Garlock Sealing Technologies LLC | 145 |
3 |
| Saint-Gobain Performance Plastics Corporation | 1030 |
3 |
| Trelleborg Sealing Solutions Germany GmbH | 188 |
3 |
| Rtx Corporation | 9242 |
3 |
| NTN Corporation | 4978 |
2 |
| ABB Schweiz AG | 6800 |
2 |
| Freudenberg-NOK General Partnership | 173 |
2 |
| Freudenberg Sealing Technologies S.A.S. di Externa Italia S.r.l.u | 19 |
2 |
| Mitsubishi Hitachi Power Systems, Ltd. | 993 |
2 |
| National University Corporation Saitama University | 132 |
2 |
| Other owners | 81 |