- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 1/00 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
Patent holdings for IPC class F04B 1/00
Total number of patents in this class: 184
10-year publication summary
|
13
|
26
|
21
|
17
|
22
|
12
|
13
|
10
|
14
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GD Energy Products, LLC | 140 |
11 |
| Robert Bosch GmbH | 44254 |
10 |
| US Well Services LLC | 225 |
9 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 476 |
7 |
| Mainspring Energy, Inc. | 125 |
5 |
| SPM Oil & Gas Inc. | 360 |
5 |
| Schlumberger Technology Corporation | 11879 |
3 |
| Flow Control LLC. | 146 |
3 |
| Pacific Biosciences of California, Inc. | 692 |
3 |
| Vulcan Industrial Holdings LLC | 85 |
3 |
| Perceptive Medical Inc. | 13 |
3 |
| Shimadzu Corporation | 6364 |
2 |
| Artemis Intelligent Power Limited | 89 |
2 |
| Hytrans Beheer B.V. | 24 |
2 |
| Medela Holding AG | 354 |
2 |
| Sanjel Energy Services Inc. | 46 |
2 |
| Sichuan Honghua Petroleum Equipment Co. Ltd. | 78 |
2 |
| S.P.M. Flow Control, Inc. | 99 |
2 |
| Quantum Servo Pumping Technologies Pty Ltd | 16 |
2 |
| Wuxi Little Swan Electric Co., Ltd. | 540 |
2 |
| Other owners | 104 |