- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16J - Pistons; cylinders; pressure vessels in general; sealings
- F16J 15/16 - Sealings between relatively-moving surfaces
Patent holdings for IPC class F16J 15/16
Total number of patents in this class: 1375
10-year publication summary
|
161
|
172
|
136
|
144
|
134
|
82
|
80
|
76
|
64
|
14
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 8674 |
62 |
| NOK Corporation | 2108 |
51 |
| Schaeffler Technologies AG & Co. KG | 8880 |
34 |
| Trelleborg Sealing Solutions Germany GmbH | 183 |
30 |
| Eagle Industry Co., Ltd. | 1062 |
29 |
| Aktiebolaget SKF | 2700 |
26 |
| Caterpillar Inc. | 8877 |
20 |
| Halliburton Energy Services, Inc. | 20165 |
17 |
| Robert Bosch GmbH | 40953 |
17 |
| Saint-Gobain Performance Plastics Corporation | 1028 |
15 |
| Baker Hughes Incorporated | 5689 |
14 |
| Kalsi Engineering, Inc. | 50 |
14 |
| Fisher Controls International LLC | 1520 |
12 |
| General Electric Company | 18133 |
10 |
| NTN Corporation | 5008 |
10 |
| Flowserve Management Company | 339 |
10 |
| Flowserve Pte. Ltd | 216 |
10 |
| Siemens AG | 24990 |
9 |
| Pratt & Whitney Canada Corp. | 4215 |
9 |
| SEW-EURODRIVE GmbH & Co. KG | 1816 |
9 |
| Other owners | 967 |