- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 23/04 - Combinations of two or more pumps
Patent holdings for IPC class F04B 23/04
Total number of patents in this class: 515
10-year publication summary
|
19
|
27
|
45
|
47
|
56
|
51
|
52
|
44
|
51
|
12
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20165 |
37 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 196 |
21 |
| US Well Services LLC | 212 |
19 |
| Schlumberger Technology Corporation | 9690 |
15 |
| Robert Bosch GmbH | 40953 |
11 |
| Caterpillar Inc. | 8877 |
10 |
| Murata Manufacturing Co., Ltd. | 22355 |
7 |
| Vermeer Manufacturing Company | 615 |
7 |
| SPM Oil & Gas Inc. | 304 |
7 |
| Hyundai Motor Company | 19021 |
6 |
| Saudi Arabian Oil Company | 11322 |
6 |
| Typhon Technology Solutions, LLC | 53 |
6 |
| Hydro-Gear Limited Partnership | 355 |
5 |
| Repligen Corporation | 258 |
5 |
| Grow Solutions Tech LLC | 112 |
5 |
| Schlumberger Canada Limited | 6913 |
4 |
| GM Global Technology Operations LLC | 13620 |
4 |
| Life Technologies Corporation | 3068 |
4 |
| Fluid Handling LLC | 241 |
4 |
| Forum US, Inc. | 315 |
4 |
| Other owners | 328 |