- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16D - Couplings for transmitting rotationclutchesbrakes
- F16D 31/02 - Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution using pumps with pistons or plungers working in cylinders
Patent holdings for IPC class F16D 31/02
Total number of patents in this class: 505
10-year publication summary
|
49
|
24
|
23
|
8
|
6
|
8
|
2
|
1
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 9449 |
57 |
| Deere & Company | 7495 |
23 |
| Hitachi Construction Machinery Co., Ltd. | 2620 |
20 |
| Hydro-Gear Limited Partnership | 345 |
20 |
| Kobelco Construction Machinery Co., Ltd. | 1133 |
15 |
| Kanzaki Kokyukoki Mfg. Co., Ltd. | 190 |
12 |
| Danfoss A/S | 1346 |
11 |
| Caterpillar SARL | 477 |
10 |
| HD Hyundai Infracore Co., Ltd | 272 |
10 |
| Parker Intangibles LLC | 1174 |
9 |
| Volvo Construction Equipment AB | 1185 |
9 |
| GM Global Technology Operations LLC | 14850 |
8 |
| Blue Leaf I.P., Inc. | 2824 |
8 |
| Komatsu Ltd. | 4505 |
7 |
| Kubota Corporation | 3718 |
7 |
| Robert Bosch GmbH | 42411 |
6 |
| a & a International, LLC | 20 |
6 |
| Danfoss Power Solutions Inc. | 110 |
5 |
| Volvo Construction Equipment Holding Sweden AB | 41 |
5 |
| Kawasaki Heavy Industries, Limited | 1612 |
4 |
| Other owners | 253 |