- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 1/0452 - Distribution members, e.g. valves
Patent holdings for IPC class F04B 1/0452
Total number of patents in this class: 106
10-year publication summary
|
2
|
6
|
13
|
8
|
11
|
15
|
19
|
16
|
12
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kerr Machine Co. | 180 |
39 |
| Robert Bosch GmbH | 44398 |
4 |
| Kennametal Inc. | 1354 |
4 |
| Poclain Hydraulics Industrie | 247 |
4 |
| SPM Oil & Gas Inc. | 361 |
4 |
| GD Energy Products, LLC | 142 |
4 |
| Halliburton Energy Services, Inc. | 21296 |
3 |
| Insulet Corporation | 953 |
3 |
| Tyco Fire & Security GmbH | 3687 |
3 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 236 |
3 |
| 7RDD Limited | 57 |
2 |
| Katadyn Desalination, LLC | 7 |
2 |
| Regents of the University of Minnesota | 2820 |
2 |
| Huaqiao University | 81 |
2 |
| Alfred Kärcher SE & Co. KG | 786 |
2 |
| Hitachi Astemo, Ltd. | 6434 |
2 |
| Cummins-scania Hpcr System, LLC | 106 |
2 |
| Pratt & Whitney Canada Corp. | 5594 |
1 |
| Denso Corporation | 25820 |
1 |
| Koninklijke Philips N.V. | 26108 |
1 |
| Other owners | 18 |