F02M 51/04
Pumps peculiar thereto
F02M51/04 (Pumps peculiar thereto) appears on 176 US grants and 102 published applications in this corpus.
Search patents in F02M- Granted patents
- 176
- Published applications
- 102
- Assignees
- 74
- Inventors
- 242
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 8 | 1 |
| 2002 | 7 | 6 |
| 2003 | 6 | 7 |
| 2004 | 6 | 7 |
| 2005 | 7 | 4 |
| 2006 | 4 | 1 |
| 2007 | 2 | 4 |
| 2008 | 3 | 3 |
| 2009 | 2 | 4 |
| 2010 | 4 | 2 |
| 2011 | 3 | 2 |
| 2012 | 1 | 4 |
| 2013 | 1 | 0 |
| 2014 | 3 | 2 |
| 2015 | 0 | 4 |
| 2016 | 3 | 6 |
| 2017 | 4 | 5 |
| 2018 | 4 | 11 |
| 2019 | 10 | 9 |
| 2020 | 6 | 4 |
| 2021 | 11 | 6 |
| 2022 | 6 | 3 |
| 2023 | 3 | 3 |
| 2024 | 3 | 0 |
| 2025 | 3 | 4 |
By publication year. Applications have been published since 2001.
Recent patents
- Fuel feed for motor-driven high pressure fuel pump28 Oct 2025US 12,454,930 B2Stanadyne Operating Company LLC
- Fuel pump assembly with multiple pumps and variable output12 Aug 2025US 12,385,455 B2Walbro Corporation
- System and method of hydrogen fuel injection14 Jan 2025US 12,196,162 B1Astron Aerospace LLC
- Rotary engine, parts thereof, and methods10 Dec 2024US 12,163,461 B2Astron Aerospace LLC
- Fuel pump17 Sep 2024US 12,095,339 B2Hitachi Astemo, Ltd.
- Fuel pump assembly with multiple pumps and variable output27 Nov 2025US 2025/0361846 A1Walbro Corporation
- Low pressure pump for fuel system and priming check valve for the same31 Jul 2025US 2025/0243835 A1Cummins Inc.
- Rotary engine, parts thereof, and methods5 Jun 2025US 2025/0179956 A1Astron Aerospace LLC
- Fuel feed for motor-driven high pressure fuel pump10 Apr 2025US 2025/0116247 A1Stanadyne, Inc.
- Two-stroke internal combustion engine and engine working machine20 Apr 2023US 2023/0119430 A1Yamabiko Corporation
Most cited
By later US patents
- Piezoelectric actuator and a piezoelectric pump injector incorporating the same64US 4,553,059 ANippon Soken, Inc. · 1985
- Piezoelectric actuator, and valve apparatus having actuator50US 4,471,256 ANippon Soken, Inc. · 1984
- Fuel injection system for an internal combustion engine49US 4,649,886 ANippon Soken, Inc. · 1987
- Fuel injection system for an internal combustion engine48US 4,499,878 ANippon Soken, Inc. · 1985
- Electromagnetic fuel ram-injector and improved ignitor48US 6,378,485 B22002