- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16J - Pistonscylinderspressure vessels in generalsealings
- F16J 15/34 - Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
Patent holdings for IPC class F16J 15/34
Total number of patents in this class: 2019
10-year publication summary
|
181
|
139
|
178
|
153
|
200
|
155
|
123
|
122
|
95
|
46
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eagle Industry Co., Ltd. | 1125 |
403 |
| EagleBurgmann Germany GmbH & Co. KG | 337 |
142 |
| Rtx Corporation | 9313 |
109 |
| Caterpillar Inc. | 9509 |
51 |
| John Crane UK Limited | 82 |
41 |
| EagleBurgmann Japan Co., Ltd. | 53 |
40 |
| John Crane Inc. | 97 |
37 |
| A.W. Chesterton Company | 89 |
33 |
| NOK Corporation | 2216 |
32 |
| AES Engineering Ltd. | 85 |
29 |
| Flowserve Management Company | 201 |
29 |
| Aktiebolaget SKF | 2924 |
23 |
| Siemens AG | 24547 |
20 |
| Nippon Pillar Packing Co., Ltd. | 256 |
20 |
| Carl Freudenberg KG | 1368 |
17 |
| Stein Seal Company | 67 |
17 |
| Eaton Intelligent Power Limited | 5972 |
17 |
| Pratt & Whitney Canada Corp. | 4629 |
16 |
| Federal-Mogul Burscheid GmbH | 283 |
16 |
| Sulzer Management AG | 660 |
14 |
| Other owners | 913 |