- 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: 153
10-year publication summary
|
9
|
18
|
15
|
21
|
21
|
13
|
15
|
21
|
18
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NOK Corporation | 2108 |
13 |
| Kalsi Engineering, Inc. | 50 |
11 |
| NTN Corporation | 5008 |
10 |
| Aktiebolaget SKF | 2700 |
8 |
| Eagle Industry Co., Ltd. | 1062 |
7 |
| Trelleborg Sealing Solutions Germany GmbH | 183 |
6 |
| ABB Oy | 178 |
4 |
| Rtx Corporation | 8674 |
4 |
| Schaeffler Technologies AG & Co. KG | 8880 |
3 |
| Hutchinson | 455 |
3 |
| Flowserve Pte. Ltd | 216 |
3 |
| Pratt & Whitney Canada Corp. | 4215 |
2 |
| Alfa Laval Corporate AB | 1265 |
2 |
| GV Engineering GmbH | 37 |
2 |
| Harmonic Drive Systems Inc. | 465 |
2 |
| Nabtesco Corporation | 871 |
2 |
| Nidec GPM GmbH | 152 |
2 |
| Nippon Pillar Packing Co., Ltd. | 269 |
2 |
| Rolls-Royce Corporation | 1686 |
2 |
| Saint-Gobain Performance Plastics L+S GMBH | 12 |
2 |
| Other owners | 63 |