- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16J - Pistons; cylinders; pressure vessels in general; sealings
- 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: 160
10-year publication summary
|
18
|
15
|
21
|
21
|
13
|
16
|
21
|
18
|
6
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NOK Corporation | 2166 |
15 |
| Kalsi Engineering, Inc. | 57 |
11 |
| NTN Corporation | 4976 |
10 |
| Aktiebolaget SKF | 2839 |
8 |
| Eagle Industry Co., Ltd. | 1101 |
7 |
| Trelleborg Sealing Solutions Germany GmbH | 188 |
6 |
| Rtx Corporation | 9109 |
5 |
| ABB Oy | 165 |
4 |
| Schaeffler Technologies AG & Co. KG | 9395 |
3 |
| Hutchinson | 461 |
3 |
| Flowserve Pte. Ltd | 369 |
3 |
| Pratt & Whitney Canada Corp. | 4442 |
2 |
| Alfa Laval Corporate AB | 1305 |
2 |
| GV Engineering GmbH | 37 |
2 |
| Harmonic Drive Systems Inc. | 473 |
2 |
| Nabtesco Corporation | 883 |
2 |
| Nidec GPM GmbH | 140 |
2 |
| Nippon Pillar Packing Co., Ltd. | 259 |
2 |
| Saint-Gobain Performance Plastics L+S GMBH | 12 |
2 |
| Wartsila Japan Ltd. | 19 |
2 |
| Other owners | 67 |