- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16J - Pistonscylinderspressure vessels in generalsealings
- F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
Patent holdings for IPC class F16J 15/3204
Total number of patents in this class: 526
10-year publication summary
|
51
|
62
|
47
|
52
|
54
|
58
|
42
|
53
|
44
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NOK Corporation | 2258 |
139 |
| NTN Corporation | 4949 |
44 |
| Aktiebolaget SKF | 3045 |
18 |
| NSK Ltd. | 2820 |
10 |
| Saint-Gobain Performance Plastics Corporation | 1039 |
10 |
| Schaeffler Technologies AG & Co. KG | 10505 |
9 |
| Carl Freudenberg KG | 1413 |
9 |
| Eagle Industry Co., Ltd. | 1158 |
8 |
| Kalsi Engineering, Inc. | 54 |
8 |
| KYB Corporation | 1399 |
8 |
| Trelleborg Sealing Solutions Germany GmbH | 191 |
8 |
| Caterpillar Inc. | 9983 |
7 |
| Denso Corporation | 24965 |
6 |
| Nakanishi Metal Works Co., Ltd. | 121 |
6 |
| Trelleborg Sealing Solutions US, Inc. | 45 |
6 |
| Nifco Inc. | 1110 |
5 |
| SEW-EURODRIVE GmbH & Co. KG | 1981 |
5 |
| Consolidated Metco, Inc. | 168 |
4 |
| Uchiyama Manufacturing Corp. | 128 |
4 |
| BAL Seal Engineering, LLC | 109 |
4 |
| Other owners | 208 |