F04B 41/04
Conversion of internal-combustion engine cylinder units to pumps
F04B41/04 (Conversion of internal-combustion engine cylinder units to pumps) appears on 31 US grants and 15 published applications in this corpus.
Search patents in F04B- Granted patents
- 31
- Published applications
- 15
- Assignees
- 15
- Inventors
- 43
- Latest grant
- 31 May 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Flexible supply gas routing for gas compressors31 May 2022US 11,346,335 B2Onboard Dynamics, Inc.
- Engine usable as a power source or pump13 Sep 2016US 9,441,538 B2Grace Motor Works Limited
- System and method for modifying an automobile engine for use as a gas compressor4 Mar 2014US 8,662,863 B2OTA Compression, LLC
- Method and device for supplying a compressor in an internal combustion engine with compressed air8 Oct 2013US 8,549,855 B2KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- Monocylindrical hybrid two-cycle engine, compressor and pump, and method of operation18 Aug 2009US 7,574,859 B2
- Dual zone cooling system for combined engine compressors29 Dec 2022US 2022/0412251 A1Onboard Dynamics, Inc.
- Air compressor28 Oct 2021US 2021/0332745 A1
- Dual zone cooling system for combined engine compressors3 Sep 2020US 2020/0277893 A1Onboard Dynamics, Inc.
- Flexible supply gas routing for gas compressors18 Jun 2020US 2020/0191131 A1Onboard Dynamics, Inc.
- Gas compressor17 Dec 2015US 2015/0361970 A1Parker-Hannifin Corporation (Parker)
Most cited
By later US patents
- Convertible engine-air compressor apparatus mounted on a vehicle for driving said vehicle37US 3,958,900 A1976
- Convertible engine-air compressor apparatus for driving a vehicle34US 3,963,379 A1976
- Engine based kinetic energy recovery system for vehicles29US 6,922,997 B1International Truck Intellectual Property Company, LLC · 2005
- Integral gas compressor and internal combustion engine28US 5,203,680 AGas Jack, Inc. · 1993
- Electronic engine - air compressor system21US 5,997,259 ANavistar International Transportation Corp. · 1999