- 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: 230
10-year publication summary
|
23
|
21
|
20
|
21
|
17
|
23
|
20
|
21
|
17
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fisher Controls International LLC | 1485 |
24 |
| Illinois Tool Works Inc. | 11396 |
6 |
| Dresser LLC | 266 |
5 |
| Hamilton Sundstrand Corporation | 4832 |
4 |
| Cameron International Corporation | 1329 |
4 |
| Volvo Truck Corporation | 3306 |
4 |
| Woodward, Inc. | 641 |
4 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 541 |
4 |
| Control Components, Inc. | 82 |
3 |
| Ichor Systems, Inc. | 73 |
3 |
| IMI Hydronic Engineering International S.A. | 94 |
3 |
| Kohler Mira Limited | 289 |
3 |
| Maxitrol Company | 37 |
3 |
| Samson Aktiengesellschaft | 280 |
3 |
| Valeo Systemes de Controle Moteur | 610 |
3 |
| KSB SE & Co. KGaA | 693 |
3 |
| Schlumberger Technology Corporation | 10627 |
2 |
| Denso Corporation | 24120 |
2 |
| Schaeffler Technologies AG & Co. KG | 9747 |
2 |
| Aerojet Rocketdyne, Inc. | 163 |
2 |
| Other owners | 143 |