F04B 2203/12
Motor parameters: of rotating hydraulic motors
Official title: of rotating hydraulic motors
F04B2203/12 (Motor parameters: of rotating hydraulic motors) appears on 23 US grants and 9 published applications in this corpus.
Search patents in F04B- Granted patents
- 23
- Published applications
- 9
- Assignees
- 17
- Inventors
- 42
- Latest grant
- 10 Mar 2026
Filings by year
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| 1984 | 1 | 0 |
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| 2018 | 1 | 1 |
| 2019 | 2 | 1 |
| 2020 | 2 | 0 |
| 2021 | 2 | 2 |
| 2022 | 0 | 1 |
| 2023 | 2 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High-pressure plunger pump, and use of a high-pressure plunger pump10 Mar 2026US 12,571,385 B2Hammelmann GmbH
- Hydraulic fracturing pump control system13 Aug 2024US 12,060,877 B2Caterpillar Inc.
- Apparatus and method for active vehicle suspension12 Dec 2023US 11,841,035 B2ClearMotion, Inc.
- Oilfield pressure pumping system with slow speed and high pressure fracturing fluid output17 Oct 2023US 11,788,395 B2Twin Disc, Incorporated
- Hydraulic-powered air compressor26 Oct 2021US 11,156,215 B2Mojahaz Shahriar Technical Engineering Service .Co , Ltd
- High-pressure plunger pump, and use of a high-pressure plunger pump17 Oct 2024US 2024/0344507 A1Hammelmann GmbH
- Hydraulic fracturing pump control system24 Mar 2022US 2022/0090594 A1Caterpillar Inc.
- Oilfield Pressure Pumping System With Slow Speed And High Pressure Fracturing Fluid Output23 Dec 2021US 2021/0396121 A1Twin Disc, Incorporated
- Apparatus and method for active vehicle suspension10 Jun 2021US 2021/0172463 A1ClearMotion, Inc.
- Hydraulic-powered air compressor23 May 2019US 2019/0154023 A1Mojahaz Shahriar Technical Engineering Service .Co , Ltd
Most cited
By later US patents
- Control system for controlling the speed of a hydraulic motor39US 6,131,391 ACaterpillar Inc. · 2000
- Vehicle generator control23US 6,394,206 B12002
- Control device for variable hydraulic machines21US 5,881,629 ASauer Inc. · 1999
- Hydraulic system with a hydromotor fed by a hydraulic transformer16US 6,223,529 B1Innas Free Piston B.V. · 2001
- Method and apparatus for controlling a hydraulic motor14US 6,848,254 B2Caterpillar Inc. · 2005