- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16K - Valves; taps; cocks; actuating-floats; devices for venting or aerating
- F16K 31/122 - Operating means; Releasing devices actuated by fluid the fluid acting on a piston
Patent holdings for IPC class F16K 31/122
Total number of patents in this class: 1387
10-year publication summary
|
111
|
141
|
159
|
154
|
180
|
138
|
121
|
99
|
86
|
23
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fujikin Incorporated | 671 |
68 |
| Fisher Controls International LLC | 1520 |
47 |
| Robert Bosch GmbH | 40953 |
22 |
| Halliburton Energy Services, Inc. | 20165 |
19 |
| Hamilton Sundstrand Corporation | 4525 |
18 |
| VAT Holding AG | 197 |
17 |
| CKD Corporation | 424 |
16 |
| Swagelok Company | 325 |
15 |
| GEA Tuchenhagen GmbH | 133 |
14 |
| SMC Corporation | 1354 |
14 |
| Alfa Laval Corporate AB | 1265 |
13 |
| Tescom Corporation | 124 |
13 |
| Cameron International Corporation | 1305 |
12 |
| Festo AG & Co. KG | 313 |
10 |
| KYB Corporation | 1278 |
10 |
| Festo SE & Co. KG | 349 |
10 |
| Emerson Process Management Regulator Technologies, Inc. | 373 |
9 |
| Safoco, Inc. | 41 |
8 |
| Honeywell International Inc. | 13799 |
7 |
| Hyundai Motor Company | 19021 |
7 |
| Other owners | 1038 |