- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 11/00 - Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
Patent holdings for IPC class F04B 11/00
Total number of patents in this class: 529
10-year publication summary
|
48
|
51
|
48
|
61
|
58
|
48
|
37
|
40
|
30
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 40953 |
56 |
| Performance Pulsation Control, Inc. | 57 |
20 |
| Denso Corporation | 23338 |
18 |
| Hitachi Astemo, Ltd. | 5618 |
17 |
| Osprey Medical, Inc. | 59 |
14 |
| Graco Minnesota Inc. | 1124 |
12 |
| Agilent Technologies, Inc. | 2744 |
11 |
| Mhwirth GmbH | 54 |
11 |
| SPM Oil & Gas Inc. | 304 |
9 |
| Nikkiso Co., Ltd. | 754 |
7 |
| Obotics Inc. | 48 |
7 |
| Eagle Industry Co., Ltd. | 1062 |
6 |
| Vitesco Technologies GmbH | 2372 |
6 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 196 |
6 |
| Halliburton Energy Services, Inc. | 20165 |
5 |
| Caterpillar Inc. | 8877 |
5 |
| Life Technologies Corporation | 3068 |
5 |
| HYDAC Technology GmbH | 221 |
5 |
| Quantum Servo Pumping Technologies Pty Ltd | 15 |
5 |
| Schlumberger Technology Corporation | 9690 |
4 |
| Other owners | 300 |