- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- 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: 459
10-year publication summary
|
34
|
44
|
47
|
41
|
47
|
38
|
35
|
30
|
24
|
21
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Graco Minnesota Inc. | 1289 |
21 |
| Halliburton Energy Services, Inc. | 21300 |
20 |
| Robert Bosch GmbH | 44427 |
15 |
| Schlumberger Technology Corporation | 12005 |
13 |
| SPM Oil & Gas Inc. | 361 |
12 |
| Caterpillar Inc. | 10364 |
11 |
| National Oilwell Varco, L.P. | 1698 |
11 |
| DEKA Products Limited Partnership | 1925 |
10 |
| Kerr Machine Co. | 182 |
10 |
| Hitachi High-Tech Corporation | 6002 |
10 |
| Agilent Technologies, Inc. | 2650 |
8 |
| Shimadzu Corporation | 6385 |
8 |
| Typhon Technology Solutions (U.S.), LLC | 109 |
8 |
| Ameriforge Group Inc. | 36 |
7 |
| GOJO Industries, Inc. | 879 |
7 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 236 |
7 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 493 |
6 |
| American Jereh International Corporation | 14 |
5 |
| Schlumberger Canada Limited | 7622 |
4 |
| Schlumberger Technology B.v. | 5294 |
4 |
| Other owners | 262 |