- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 7/04 - Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
Patent holdings for IPC class F04B 7/04
Total number of patents in this class: 97
10-year publication summary
|
4
|
7
|
12
|
3
|
10
|
6
|
2
|
5
|
3
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4045 |
9 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10983 |
4 |
| Sensile Medical AG | 118 |
4 |
| SHL Medical AG | 1338 |
4 |
| Robert Bosch GmbH | 43428 |
3 |
| Koninklijke Philips N.V. | 25448 |
3 |
| Graco Minnesota Inc. | 1254 |
3 |
| Jacobsen Innovations, Inc. | 14 |
3 |
| Schlumberger Technology Corporation | 11404 |
2 |
| Denso Corporation | 25074 |
2 |
| Medtronic MiniMed, Inc. | 1802 |
2 |
| Caterpillar Inc. | 10025 |
2 |
| Beijing Red-sea Tech Co., Ltd. | 20 |
2 |
| Cameron International Corporation | 1361 |
2 |
| Cummins Inc. | 2581 |
2 |
| Fluid Metering, Inc. | 60 |
2 |
| GHSP, Inc. | 136 |
2 |
| Magnolia Medical Technologies, Inc. | 164 |
2 |
| Pascal Engineering Corporation | 127 |
2 |
| Cooper Machinery Services LLC | 50 |
2 |
| Other owners | 40 |