- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16J - Pistons; cylinders; pressure vessels in general; sealings
- F16J 15/3212 - 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 with metal springs
Patent holdings for IPC class F16J 15/3212
Total number of patents in this class: 159
10-year publication summary
5
|
21
|
19
|
19
|
19
|
19
|
21
|
14
|
24
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
NOK Corporation | 2108 |
25 |
Saint-Gobain Performance Plastics Corporation | 1028 |
21 |
Trelleborg Sealing Solutions Germany GmbH | 183 |
11 |
BAL Seal Engineering, LLC | 106 |
10 |
Carl Freudenberg KG | 1346 |
6 |
Schaeffler Technologies AG & Co. KG | 8880 |
5 |
Gardner Denver Deutschland GmbH | 58 |
4 |
Andritz Oy | 276 |
3 |
ElringKlinger AG | 487 |
3 |
Cyclam | 3 |
3 |
Pratt & Whitney Canada Corp. | 4215 |
2 |
Caterpillar Inc. | 8877 |
2 |
Aktiebolaget SKF | 2700 |
2 |
Cross Manufacturing Company (1938) Limited | 28 |
2 |
Eagle Industry Co., Ltd. | 1062 |
2 |
ElringKlinger Kunststofftechnik GmbH | 24 |
2 |
Fisher Controls International LLC | 1520 |
2 |
Kaydon Ring & Seal, Inc. | 20 |
2 |
Tenute S.r.l. | 6 |
2 |
Vitesco Technologies GmbH | 2372 |
2 |
Other owners | 48 |