- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16J - Pistonscylinderspressure vessels in generalsealings
- F16J 15/324 - Arrangements for lubrication or cooling of the sealing itself
Patent holdings for IPC class F16J 15/324
Total number of patents in this class: 176
10-year publication summary
|
15
|
21
|
21
|
13
|
16
|
21
|
18
|
6
|
11
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NOK Corporation | 2288 |
16 |
| NTN Corporation | 4930 |
12 |
| Kalsi Engineering, Inc. | 51 |
11 |
| Aktiebolaget SKF | 3097 |
8 |
| Eagle Industry Co., Ltd. | 1171 |
7 |
| Trelleborg Sealing Solutions Germany GmbH | 188 |
6 |
| Rtx Corporation | 9931 |
6 |
| ABB Oy | 156 |
4 |
| Caterpillar Inc. | 10184 |
3 |
| Schaeffler Technologies AG & Co. KG | 10771 |
3 |
| Hutchinson | 485 |
3 |
| Flowserve Pte. Ltd | 375 |
3 |
| NSK Ltd. | 2826 |
2 |
| Alfa Laval Corporate AB | 1333 |
2 |
| GV Engineering GmbH | 37 |
2 |
| Harmonic Drive Systems Inc. | 479 |
2 |
| Herrenknecht AG | 210 |
2 |
| Nabtesco Corporation | 853 |
2 |
| Nidec GPM GmbH | 143 |
2 |
| Nippon Pillar Packing Co., Ltd. | 237 |
2 |
| Other owners | 78 |