- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16J - Pistons; cylinders; pressure vessels in general; sealings
- F16J 9/02 - L-section rings
Patent holdings for IPC class F16J 9/02
Total number of patents in this class: 26
10-year publication summary
|
2
|
2
|
0
|
3
|
2
|
2
|
2
|
1
|
3
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Federal-Mogul Burscheid GmbH | 284 |
7 |
| Burckhardt Compression AG | 116 |
3 |
| Tenneco Inc | 274 |
3 |
| MayMaan Research, LLC | 13 |
2 |
| Wilmington Trust, National Association, AS Co-collateral Trustee, Successor Collateral Trustee | 345 |
2 |
| Mainspring Energy, Inc. | 98 |
2 |
| Caterpillar Inc. | 8877 |
1 |
| Federal-Mogul Corporation | 362 |
1 |
| GREE Electric Appliances, Inc. of Zhuhai | 3007 |
1 |
| HydroCision, Inc. | 32 |
1 |
| Solar Storage Company | 3 |
1 |
| Savice Ltd | 1 |
1 |
| ZF CV Systems Europe BV | 682 |
1 |
| Other owners | 0 |