F02B 37/12
Control of the pumps
F02B37/12 (Control of the pumps) appears on 4,318 US grants and 4,213 published applications in this corpus.
Search patents in F02B- Granted patents
- 4,318
- Published applications
- 4,213
- Assignees
- 664
- Inventors
- 6,517
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 7 | 0 |
| 1978 | 14 | 0 |
| 1979 | 7 | 0 |
| 1980 | 20 | 0 |
| 1981 | 24 | 0 |
| 1982 | 15 | 0 |
| 1983 | 29 | 0 |
| 1984 | 52 | 0 |
| 1985 | 35 | 0 |
| 1986 | 26 | 0 |
| 1987 | 42 | 0 |
| 1988 | 42 | 0 |
| 1989 | 22 | 0 |
| 1990 | 28 | 0 |
| 1991 | 25 | 0 |
| 1992 | 38 | 0 |
| 1993 | 22 | 0 |
| 1994 | 16 | 0 |
| 1995 | 18 | 0 |
| 1996 | 15 | 0 |
| 1997 | 15 | 0 |
| 1998 | 31 | 0 |
| 1999 | 30 | 0 |
| 2000 | 56 | 0 |
| 2001 | 62 | 13 |
| 2002 | 49 | 55 |
| 2003 | 75 | 75 |
| 2004 | 51 | 80 |
| 2005 | 74 | 79 |
| 2006 | 71 | 106 |
| 2007 | 50 | 116 |
| 2008 | 71 | 105 |
| 2009 | 63 | 148 |
| 2010 | 68 | 156 |
| 2011 | 71 | 192 |
| 2012 | 142 | 187 |
| 2013 | 151 | 187 |
| 2014 | 143 | 268 |
| 2015 | 207 | 331 |
| 2016 | 241 | 323 |
| 2017 | 265 | 296 |
| 2018 | 321 | 304 |
| 2019 | 312 | 289 |
| 2020 | 320 | 285 |
| 2021 | 259 | 196 |
| 2022 | 225 | 158 |
| 2023 | 153 | 96 |
| 2024 | 127 | 69 |
| 2025 | 84 | 54 |
| 2026 | 25 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02B 37/18By bypassing exhaust from the inlet to the outlet of turbine or2,258
- F02B 37/16By bypassing charging air1,064
- F02B 37/24By using pumps or turbines with adjustable guide vanes1,022
- F02B 37/22By varying cross-section of exhaust passages or air passages666
- F02B 37/14Control of the alternation between or the operation of exhaust drive and224
- F02B 2037/122Control of rotational speed of the pumpIndexing code131
- F02B 2037/125Control for avoiding pump stall or surgeIndexing code112
- F02B 37/20By increasing exhaust energy63
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Most cited
By later US patents
- Hybrid vehicles228US 6,554,088 B2Paice LLC · 2003
- Turbocharging systems for internal combustion engines197US 6,062,026 ATurbodyne Systems, Inc. · 2000
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- Premixed charge compression ignition engine with optimal combustion control152US 6,230,683 B1Cummins Engine Company, Inc. · 2001
- Control system for exhaust gas recovery system in an internal combustion engine151US 5,771,867 ACaterpillar Inc. · 1998