- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 31/00 - Operating meansReleasing devices
Patent holdings for IPC class F16K 31/00
Total number of patents in this class: 1534
10-year publication summary
144
|
147
|
142
|
143
|
123
|
98
|
96
|
101
|
68
|
41
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Fisher Controls International LLC | 1484 |
32 |
Fujikin Incorporated | 694 |
28 |
HORIBA STEC, Co., Ltd. | 326 |
25 |
Robert Bosch GmbH | 42411 |
24 |
Vernet | 155 |
22 |
Hamilton Sundstrand Corporation | 4826 |
20 |
Hyundai Motor Company | 21501 |
17 |
Illinois Tool Works Inc. | 11392 |
16 |
Mechano Transformer Corporation | 44 |
14 |
Satake Corporation | 292 |
14 |
Rockwell Automation Technologies, Inc. | 2716 |
13 |
GM Global Technology Operations LLC | 14850 |
12 |
Nippon Thermostat Co., Ltd. | 164 |
12 |
Festo SE & Co. KG | 379 |
12 |
AM Conservation Group | 20 |
12 |
Kia Motors Corporation | 7760 |
9 |
Applied Materials, Inc. | 18383 |
8 |
AS America, Inc. | 1045 |
8 |
CKD Corporation | 451 |
8 |
Dana Canada Corporation | 274 |
8 |
Other owners | 1220 |