F02B 39/02
Drives of pumps
Official title: Drives of pumps (exhaust drives or combined exhaust and other drives F02B37/00); Varying pump drive gear ratio
F02B39/02 (Drives of pumps) appears on 1,333 US grants and 1,384 published applications in this corpus.
Search patents in F02B- Granted patents
- 1,333
- Published applications
- 1,384
- Assignees
- 364
- Inventors
- 2,251
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 7 | 0 |
| 1987 | 13 | 0 |
| 1988 | 13 | 0 |
| 1989 | 16 | 0 |
| 1990 | 17 | 0 |
| 1991 | 14 | 0 |
| 1992 | 16 | 0 |
| 1993 | 6 | 0 |
| 1994 | 14 | 0 |
| 1995 | 14 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 7 | 0 |
| 1999 | 17 | 0 |
| 2000 | 20 | 0 |
| 2001 | 19 | 11 |
| 2002 | 22 | 18 |
| 2003 | 30 | 27 |
| 2004 | 19 | 39 |
| 2005 | 30 | 30 |
| 2006 | 20 | 31 |
| 2007 | 18 | 36 |
| 2008 | 13 | 38 |
| 2009 | 17 | 33 |
| 2010 | 23 | 54 |
| 2011 | 16 | 38 |
| 2012 | 28 | 44 |
| 2013 | 40 | 52 |
| 2014 | 27 | 59 |
| 2015 | 49 | 73 |
| 2016 | 41 | 104 |
| 2017 | 64 | 105 |
| 2018 | 97 | 110 |
| 2019 | 105 | 128 |
| 2020 | 125 | 101 |
| 2021 | 78 | 68 |
| 2022 | 82 | 55 |
| 2023 | 54 | 53 |
| 2024 | 57 | 30 |
| 2025 | 35 | 33 |
| 2026 | 15 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
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By later US patents
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- Optimized lambda and compression temperature control for compression ignition engines133US 6,273,076 B1Servojet Products International · 2001
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