- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 25/02 - Multi-stage pumps specially adapted for elastic fluids of stepped-piston type
Patent holdings for IPC class F04B 25/02
Total number of patents in this class: 46
10-year publication summary
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1
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5
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7
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3
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6
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3
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6
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4
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2
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gas Technology Institute | 337 |
4 |
| Kobe Steel, Ltd. | 893 |
4 |
| Dongguan Xianma Electromechanical Co., Ltd. | 12 |
3 |
| Board of Regents, The University of Texas System | 6023 |
2 |
| INFICON GmbH | 216 |
2 |
| Tonand Inc. | 17 |
2 |
| ZF CV Systems Europe BV | 805 |
2 |
| Dalum Beverage Equipment ApS | 3 |
2 |
| Flowco Masterco LLC | 45 |
2 |
| Robert Bosch GmbH | 43554 |
1 |
| Hyundai Motor Company | 23688 |
1 |
| Continental Teves AG & Co. oHG | 1499 |
1 |
| Hamilton Sundstrand Corporation | 5014 |
1 |
| Beto Engineering and Marketing Co., Ltd. | 64 |
1 |
| Crosman Corporation | 192 |
1 |
| Go Natural Cng, LLC | 1 |
1 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2839 |
1 |
| Nantong Guangxing Pneumatic Equipment Co., Ltd. | 12 |
1 |
| Ruili Group Ruian Auto Parts Co., Ltd. | 6 |
1 |
| US Airflow | 2 |
1 |
| Other owners | 12 |