- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16J - Pistons; cylinders; pressure vessels in general; sealings
- F16J 15/3208 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
Patent holdings for IPC class F16J 15/3208
Total number of patents in this class: 138
10-year publication summary
|
3
|
13
|
23
|
29
|
17
|
15
|
20
|
7
|
17
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Trelleborg Sealing Solutions Germany GmbH | 183 |
18 |
| Aktiebolaget SKF | 2700 |
7 |
| Carl Freudenberg KG | 1346 |
7 |
| NOK Corporation | 2108 |
7 |
| Kalsi Engineering, Inc. | 50 |
6 |
| Saint-Gobain Performance Plastics Corporation | 1028 |
6 |
| BAL Seal Engineering, LLC | 106 |
5 |
| ElringKlinger AG | 487 |
4 |
| Schaeffler Technologies AG & Co. KG | 8880 |
3 |
| Robert Bosch GmbH | 40953 |
2 |
| NTN Corporation | 5008 |
2 |
| ABB Schweiz AG | 6321 |
2 |
| Dreco Energy Services ULC | 36 |
2 |
| ElringKlinger Kunststofftechnik GmbH | 24 |
2 |
| Fisher Controls International LLC | 1520 |
2 |
| Flowserve Management Company | 339 |
2 |
| KACO GmbH + Co. KG | 48 |
2 |
| Parker-Hannifin Corporation | 999 |
2 |
| Trelleborg Sealing Solutions US, Inc. | 30 |
2 |
| Rtx Corporation | 8674 |
2 |
| Other owners | 53 |