- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 23/12 - Combinations of two or more pumps the pumps being of different types at least one pump being of the rotary-piston positive-displacement type
Patent holdings for IPC class F04B 23/12
Total number of patents in this class: 32
10-year publication summary
|
6
|
2
|
3
|
4
|
3
|
0
|
2
|
0
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42922 |
3 |
| Hydro-Gear Limited Partnership | 341 |
3 |
| Leobersdorfer Maschinenfabrik AG | 8 |
3 |
| Honda Motor Co., Ltd. | 25774 |
2 |
| Rolls-Royce PLC | 3139 |
2 |
| ZF Friedrichshafen AG | 7177 |
1 |
| Aisin AW Co., Ltd. | 2314 |
1 |
| Agilent Technologies, Inc. | 2628 |
1 |
| Hamilton Sundstrand Corporation | 4940 |
1 |
| Advanced Green Technologies, LLC | 47 |
1 |
| Bausch + Strobel Maschinenfabrik Ilshofen GmbH & Co. KG | 51 |
1 |
| ColorMatrix Europe Limited | 15 |
1 |
| ColorMatrix Holdings, Inc. | 126 |
1 |
| HYDAC Fluidtechnik GmbH | 139 |
1 |
| Hytorc Division Unex Corporation | 91 |
1 |
| MAHLE International GmbH | 2817 |
1 |
| Nippon Oil Pump Co., Ltd. | 29 |
1 |
| Project Phoenix, LLC | 53 |
1 |
| Slw Automotive Inc. | 6 |
1 |
| Suntory Holdings Limited | 2056 |
1 |
| Other owners | 4 |