- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 23/06 - Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
Patent holdings for IPC class F04B 23/06
Total number of patents in this class: 401
10-year publication summary
|
25
|
47
|
34
|
44
|
47
|
41
|
48
|
32
|
31
|
10
|
| 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 |
15 |
| Graco Minnesota Inc. | 1124 |
15 |
| Schlumberger Technology Corporation | 9690 |
13 |
| Robert Bosch GmbH | 40953 |
12 |
| Caterpillar Inc. | 8877 |
11 |
| DEKA Products Limited Partnership | 1640 |
11 |
| SPM Oil & Gas Inc. | 304 |
11 |
| National Oilwell Varco, L.P. | 1604 |
9 |
| Shimadzu Corporation | 5791 |
8 |
| Ameriforge Group Inc. | 40 |
8 |
| Hitachi High-Tech Corporation | 4424 |
8 |
| Typhon Technology Solutions (U.S.), LLC | 78 |
8 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 196 |
7 |
| GOJO Industries, Inc. | 891 |
6 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 396 |
6 |
| Agilent Technologies, Inc. | 2744 |
5 |
| Schlumberger Canada Limited | 6913 |
4 |
| Schlumberger Technology B.v. | 4951 |
4 |
| J-Lok Co. | 40 |
4 |
| Pumptec, Inc. | 16 |
4 |
| Other owners | 232 |