- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16J - Pistons; cylinders; pressure vessels in general; sealings
- F16J 15/54 - Other sealings for rotating shafts
Patent holdings for IPC class F16J 15/54
Total number of patents in this class: 174
10-year publication summary
|
13
|
8
|
16
|
12
|
13
|
16
|
3
|
10
|
7
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries, Ltd. | 8515 |
7 |
| Halliburton Energy Services, Inc. | 20411 |
6 |
| Pratt & Whitney Canada Corp. | 4434 |
6 |
| A.W. Chesterton Company | 85 |
6 |
| Eagle Industry Co., Ltd. | 1099 |
5 |
| Vulco, S.A. | 59 |
5 |
| BorgWarner Inc. | 2588 |
4 |
| Kalsi Engineering, Inc. | 57 |
4 |
| Schaeffler Technologies AG & Co. KG | 9364 |
3 |
| Ankol EOOD | 5 |
3 |
| SEW-EURODRIVE GmbH & Co. KG | 1913 |
3 |
| Weir Minerals Australia, Ltd. | 307 |
3 |
| Inpro/Seal LLC | 79 |
3 |
| Rtx Corporation | 9077 |
3 |
| NTN Corporation | 4980 |
2 |
| Cross Manufacturing Company (1938) Limited | 28 |
2 |
| Deublin Company | 46 |
2 |
| FANUC Corporation | 6314 |
2 |
| John Crane Inc. | 97 |
2 |
| Kaydon Ring & Seal, Inc. | 20 |
2 |
| Other owners | 101 |