- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16J - Pistonscylinderspressure vessels in generalsealings
- F16J 9/08 - Piston-rings, seats thereforRing sealings of similar construction in general with expansion obtained by pressure of the medium
Patent holdings for IPC class F16J 9/08
Total number of patents in this class: 50
10-year publication summary
|
3
|
8
|
6
|
3
|
1
|
4
|
5
|
2
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mainspring Energy, Inc. | 125 |
7 |
| Robert Bosch GmbH | 44291 |
3 |
| Burckhardt Compression AG | 126 |
3 |
| Fisher Controls International LLC | 1430 |
3 |
| AI Alpine US Bidco LLC | 65 |
3 |
| AI Alpine US Bidco Inc. | 102 |
3 |
| Illinois Tool Works Inc. | 11867 |
2 |
| Buemach Engineering International B.V. | 19 |
2 |
| EtaGen, Inc. | 36 |
2 |
| Federal-Mogul Burscheid GmbH | 276 |
2 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 571 |
2 |
| LiquidPiston, Inc. | 50 |
2 |
| Beijing New Seal Institute of Hydraulic Technology | 3 |
2 |
| Hamilton Sundstrand Corporation | 5013 |
1 |
| NTN Corporation | 4923 |
1 |
| BorgWarner Inc. | 2584 |
1 |
| Bumach Engineering International B.V. | 34 |
1 |
| BWI Company Limited S.A. | 34 |
1 |
| Claudius Peters Technologies GmbH | 6 |
1 |
| Electro-Motive Diesel, Inc. | 70 |
1 |
| Other owners | 7 |