- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16J - Pistons; cylinders; pressure vessels in general; sealings
- F16J 15/38 - Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member sealed by a packing
Patent holdings for IPC class F16J 15/38
Total number of patents in this class: 114
10-year publication summary
|
7
|
5
|
7
|
8
|
9
|
4
|
6
|
8
|
5
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eagle Industry Co., Ltd. | 1101 |
18 |
| A.W. Chesterton Company | 85 |
10 |
| EagleBurgmann Germany GmbH & Co. KG | 328 |
9 |
| John Crane Inc. | 97 |
9 |
| Halliburton Energy Services, Inc. | 20419 |
6 |
| Siemens AG | 24573 |
3 |
| Pratt & Whitney Canada Corp. | 4438 |
3 |
| EagleBurgmann Japan Co., Ltd. | 53 |
3 |
| Schaeffler Technologies AG & Co. KG | 9386 |
2 |
| AES Engineering Ltd. | 87 |
2 |
| Burgmann Industries GmbH & Co. KG | 12 |
2 |
| Freudenberg-NOK General Partnership | 178 |
2 |
| KACO GmbH + Co. KG | 47 |
2 |
| Magnetic Seal Corp. | 2 |
2 |
| Meccanotecnica Umbra S.p.A. | 25 |
2 |
| Flowserve Pte. Ltd | 369 |
2 |
| Siemens Energy Global GmbH & Co. KG | 2828 |
2 |
| Honeywell International Inc. | 14012 |
1 |
| Denso Corporation | 23747 |
1 |
| Air Products and Chemicals, Inc. | 1426 |
1 |
| Other owners | 32 |