- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 7/02 - Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated
Patent holdings for IPC class F04B 7/02
Total number of patents in this class: 214
10-year publication summary
|
12
|
17
|
19
|
13
|
19
|
23
|
19
|
26
|
18
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kerr Machine Co. | 177 |
39 |
| DEKA Products Limited Partnership | 1897 |
18 |
| Graco Minnesota Inc. | 1286 |
12 |
| AquaStar Pool Products, Inc. | 87 |
8 |
| Robert Bosch GmbH | 44254 |
5 |
| Halliburton Energy Services, Inc. | 21309 |
4 |
| LG Electronics Inc. | 75855 |
4 |
| TPE Midstream LLC | 62 |
4 |
| PHINIA Jersey Holdings LLC | 372 |
4 |
| Phinia Holdings Jersey Ltd | 299 |
4 |
| The Procter & Gamble Company | 21852 |
3 |
| Denso Corporation | 25645 |
3 |
| Ameriforge Group Inc. | 36 |
3 |
| Milwaukee Electric Tool Corporation | 4991 |
3 |
| Hammelmann GmbH | 35 |
3 |
| Nuovo Pignone Tecnologie S.r.l. | 1223 |
3 |
| PistonPower ApS | 11 |
3 |
| SPM Oil & Gas Inc. | 360 |
3 |
| Carrier Corporation | 3947 |
2 |
| Entegris, Inc. | 2011 |
2 |
| Other owners | 84 |