- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 1/0461 - Distribution members, e.g. valves conical
Patent holdings for IPC class F04B 1/0461
Total number of patents in this class: 14
10-year publication summary
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0
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0
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3
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4
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3
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3
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1
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2
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1
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21217 |
3 |
| Kerr Machine Co. | 167 |
3 |
| SPM Oil & Gas Inc. | 348 |
2 |
| GD Energy Products, LLC | 129 |
2 |
| Denso Corporation | 25232 |
1 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 467 |
1 |
| Vulcan Industrial Holdings LLC | 73 |
1 |
| Alfred Kärcher SE & Co. KG | 745 |
1 |
| Other owners | 0 |