- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16J - Pistons; cylinders; pressure vessels in general; sealings
- F16J 15/3224 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip capable of accommodating changes in distances or misalignment between the surfaces, e.g. able to compensate for defaults of eccentricity or angular deviations
Patent holdings for IPC class F16J 15/3224
Total number of patents in this class: 87
10-year publication summary
|
4
|
13
|
11
|
15
|
16
|
14
|
7
|
5
|
6
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NOK Corporation | 2108 |
21 |
| Aktiebolaget SKF | 2700 |
6 |
| Freudenberg-NOK General Partnership | 178 |
6 |
| Caterpillar Inc. | 8877 |
4 |
| Cathedral Energy Services Ltd. | 16 |
3 |
| Trelleborg Sealing Solutions Germany GmbH | 183 |
3 |
| Schaeffler Technologies AG & Co. KG | 8880 |
2 |
| Dana Automotive Systems Group, LLC | 395 |
2 |
| Textron Innovations Inc. | 2138 |
2 |
| Inpro/Seal LLC | 69 |
2 |
| Rtx Corporation | 8674 |
2 |
| Halliburton Energy Services, Inc. | 20165 |
1 |
| LG Electronics Inc. | 69257 |
1 |
| Robert Bosch GmbH | 40953 |
1 |
| Lockheed Martin Corporation | 3406 |
1 |
| Motorola Solutions, Inc. | 4355 |
1 |
| Tsinghua University | 5426 |
1 |
| ABB Oy | 178 |
1 |
| Johnson Controls Technology Company | 1522 |
1 |
| Kennametal Inc. | 1380 |
1 |
| Other owners | 25 |