- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16J - Pistons; cylinders; pressure vessels in general; sealings
- F16J 15/3228 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip formed by deforming a flat ring
Patent holdings for IPC class F16J 15/3228
Total number of patents in this class: 61
10-year publication summary
|
3
|
5
|
13
|
8
|
9
|
1
|
5
|
9
|
6
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Carl Freudenberg KG | 1346 |
7 |
| Trelleborg Sealing Solutions Germany GmbH | 183 |
6 |
| KACO GmbH + Co. KG | 48 |
4 |
| Saint-Gobain Performance Plastics Corporation | 1028 |
4 |
| ElringKlinger AG | 487 |
3 |
| NOK Corporation | 2108 |
3 |
| Caterpillar Inc. | 8877 |
2 |
| Schaeffler Technologies AG & Co. KG | 8880 |
2 |
| Aktiebolaget SKF | 2700 |
2 |
| ElringKlinger Kunststofftechnik GmbH | 24 |
2 |
| Garlock Sealing Technologies LLC | 149 |
2 |
| Robert Bosch GmbH | 40953 |
1 |
| Denso Corporation | 23338 |
1 |
| ZF Friedrichshafen AG | 6820 |
1 |
| NSK Ltd. | 2719 |
1 |
| Komatsu Ltd. | 4265 |
1 |
| Amsted Rail Company, Inc. | 432 |
1 |
| Arcam AB | 204 |
1 |
| Ashbridge & Roseburgh Inc. | 3 |
1 |
| Federal-Mogul Powertrain LLC | 208 |
1 |
| Other owners | 15 |