- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 1/54 - Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
Patent holdings for IPC class F16K 1/54
Total number of patents in this class: 253
10-year publication summary
|
21
|
20
|
21
|
18
|
23
|
20
|
21
|
19
|
22
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fisher Controls International LLC | 1457 |
25 |
| Illinois Tool Works Inc. | 11863 |
6 |
| Dresser LLC | 294 |
6 |
| Woodward, Inc. | 674 |
5 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 703 |
5 |
| Hamilton Sundstrand Corporation | 5015 |
4 |
| Cameron International Corporation | 1370 |
4 |
| Maxitrol Company | 36 |
4 |
| Volvo Truck Corporation | 3911 |
4 |
| Schlumberger Technology Corporation | 11818 |
3 |
| HORIBA STEC, Co., Ltd. | 366 |
3 |
| Ichor Systems, Inc. | 77 |
3 |
| IMI Hydronic Engineering International S.A. | 118 |
3 |
| Kohler Mira Limited | 311 |
3 |
| Marshall Excelsior Company | 70 |
3 |
| Samson Aktiengesellschaft | 276 |
3 |
| Valeo Systemes de Controle Moteur | 581 |
3 |
| KSB SE & Co. KGaA | 736 |
3 |
| IMI Critical Engineering LLC | 112 |
3 |
| Denso Corporation | 25534 |
2 |
| Other owners | 158 |