- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16J - Pistons; cylinders; pressure vessels in general; sealings
- F16J 15/00 - Sealings
Patent holdings for IPC class F16J 15/00
Total number of patents in this class: 988
10-year publication summary
86
|
99
|
96
|
86
|
87
|
74
|
51
|
57
|
39
|
13
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
NOK Corporation | 2108 |
51 |
Rtx Corporation | 8674 |
18 |
Siemens AG | 24990 |
15 |
Eagle Industry Co., Ltd. | 1062 |
14 |
Baker Hughes Incorporated | 5689 |
12 |
Carl Freudenberg KG | 1346 |
12 |
Caterpillar Inc. | 8877 |
11 |
Aktiebolaget SKF | 2700 |
11 |
Flowserve Management Company | 339 |
11 |
Valqua, Ltd. | 252 |
10 |
Robert Bosch GmbH | 40953 |
9 |
NOF Corporation | 194 |
9 |
Stein Seal Company | 69 |
9 |
A.W. Chesterton Company | 80 |
8 |
EagleBurgmann Germany GmbH & Co. KG | 314 |
8 |
John Crane Inc. | 93 |
8 |
Kalsi Engineering, Inc. | 50 |
8 |
Burckhardt Compression AG | 116 |
7 |
The Boeing Company | 19843 |
6 |
Schaeffler Technologies AG & Co. KG | 8880 |
6 |
Other owners | 745 |