- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 11/00 - Equalisation of pulses, e.g. by use of air vesselsCounteracting cavitation
Patent holdings for IPC class F04B 11/00
Total number of patents in this class: 548
10-year publication summary
|
50
|
46
|
59
|
54
|
46
|
36
|
41
|
33
|
17
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42861 |
54 |
| Performance Pulsation Control, Inc. | 58 |
22 |
| Denso Corporation | 24588 |
18 |
| Hitachi Astemo, Ltd. | 6380 |
15 |
| Mhwirth GmbH | 55 |
13 |
| Osprey Medical, Inc. | 52 |
13 |
| Graco Minnesota Inc. | 1214 |
11 |
| Agilent Technologies, Inc. | 2630 |
9 |
| SPM Oil & Gas Inc. | 332 |
9 |
| Obotics Inc. | 50 |
8 |
| Nikkiso Co., Ltd. | 789 |
7 |
| Beckman Coulter, Inc. | 1282 |
6 |
| Tetra Laval Holdings & Finance S.A. | 2176 |
6 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 216 |
6 |
| Halliburton Energy Services, Inc. | 20991 |
5 |
| Caterpillar Inc. | 9659 |
5 |
| Life Technologies Corporation | 3326 |
5 |
| Dionex Softron GmbH | 118 |
5 |
| Eagle Industry Co., Ltd. | 1136 |
5 |
| Surpass Industry Co., Ltd. | 164 |
5 |
| Other owners | 321 |