F03C 1/0431
Draining of the engine housing
Official title: {Draining of the engine housing; arrangements dealing with leakage fluid}
F03C1/0431 (Draining of the engine housing) appears on 7 US grants and 6 published applications in this corpus.
Search patents in F03C- Granted patents
- 7
- Published applications
- 6
- Assignees
- 4
- Inventors
- 22
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 2 |
| 2004 | 2 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 0 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Flushing circuit for a hydraulic machine4 Feb 2025US 12,215,678 B2Poclain Hydraulics Industrie
- Hydraulic machine including an improved braking system5 Oct 2021US 11,136,976 B2Poclain Hydraulics Industrie
- Rotary hydraulic machine9 Feb 2021US 10,914,281 B2Italgroup S.R.L. Con Socio Unico
- Method and apparatus for returning the drain oil of a hydraulic motor15 Mar 2005US 6,865,980 B2Ideachip Oy
- Tapping circuit including a tapping valve for replenishing and/or flushing the casing of a hydraulic motor12 Oct 2004US 6,802,182 B2Poclain Hydraulics Industrie
- Improved flushing circuit for a hydraulic machine25 Jul 2024US 2024/0247635 A1Poclain Hydraulics Industrie
- Rotary hydraulic machine12 Sep 2019US 2019/0277246 A1Italgroup S.R.L. Con Socio Unico
- Hydraulic Machine Including an Improved Braking System2 May 2019US 2019/0128259 A1Poclain Hydraulics Industrie
- Method and apparatus for returning the drain oil of a hydraulic motor8 May 2003US 2003/0085076 A1Ideachip Oy
- Leakage oil return apparatus for a hydraulic motor16 Jan 2003US 2003/0010562 A1Ideachip Oy
Most cited
By later US patents
- Hydrostatic-mechanical gear for driving a mixing drum14US 5,746,509 AZF Friedrichshafen AG · 1998
- Method and apparatus for returning the drain oil of a hydraulic motor4US 6,865,980 B2Ideachip Oy · 2005
- Hydraulic machine including an improved braking system1US 11,136,976 B2Poclain Hydraulics Industrie · 2021
- Leakage oil return apparatus for a hydraulic motor1US 6,755,018 B2Ideachip Oy · 2004
- Tapping circuit including a tapping valve for replenishing and/or flushing the casing of a hydraulic motor1US 6,802,182 B2Poclain Hydraulics Industrie · 2004