F02N
Starting of combustion engines
Official title: Starting of combustion engines; starting aids for such engines, not otherwise provided for
F02N (Starting of combustion engines) appears on 7,550 US grants and 6,649 published applications in this corpus.
Search patents in F02N- Granted patents
- 7,550
- Published applications
- 6,649
- Assignees
- 1,416
- Inventors
- 11,723
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 41 | 0 |
| 1977 | 28 | 0 |
| 1978 | 34 | 0 |
| 1979 | 28 | 0 |
| 1980 | 52 | 0 |
| 1981 | 42 | 0 |
| 1982 | 61 | 0 |
| 1983 | 56 | 0 |
| 1984 | 67 | 0 |
| 1985 | 66 | 0 |
| 1986 | 46 | 0 |
| 1987 | 54 | 0 |
| 1988 | 55 | 0 |
| 1989 | 74 | 0 |
| 1990 | 119 | 0 |
| 1991 | 100 | 0 |
| 1992 | 104 | 0 |
| 1993 | 68 | 0 |
| 1994 | 64 | 0 |
| 1995 | 49 | 0 |
| 1996 | 62 | 0 |
| 1997 | 58 | 0 |
| 1998 | 76 | 0 |
| 1999 | 76 | 0 |
| 2000 | 88 | 0 |
| 2001 | 106 | 42 |
| 2002 | 138 | 190 |
| 2003 | 139 | 167 |
| 2004 | 200 | 237 |
| 2005 | 166 | 199 |
| 2006 | 185 | 226 |
| 2007 | 162 | 194 |
| 2008 | 134 | 204 |
| 2009 | 139 | 260 |
| 2010 | 176 | 278 |
| 2011 | 144 | 272 |
| 2012 | 212 | 325 |
| 2013 | 266 | 435 |
| 2014 | 315 | 407 |
| 2015 | 374 | 443 |
| 2016 | 374 | 388 |
| 2017 | 407 | 340 |
| 2018 | 374 | 404 |
| 2019 | 386 | 429 |
| 2020 | 386 | 351 |
| 2021 | 331 | 253 |
| 2022 | 324 | 213 |
| 2023 | 211 | 163 |
| 2024 | 151 | 88 |
| 2025 | 120 | 88 |
| 2026 | 62 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- F02N 11/00Starting of engines by means of electric motors5,510
- F02N 2200/00Parameters used for control of starting apparatusIndexing code2,090
- F02N 15/00Starting of combustion engines: other power-operated starting apparatus1,678
- F02N 19/00Starting aids for combustion engines, not otherwise provided for1,178
- F02N 2300/00Control related aspects of engine startingIndexing code990
- F02N 3/00Starting of combustion engines: other muscle-operated starting apparatus405
- F02N 2250/00Problems related to engine starting or engine's starting apparatusIndexing code330
- F02N 99/00Subject matter not provided for in the other groups of this subclass252
All 13 main groupsShow fewer
- F02N 5/00Starting apparatus having mechanical power storage249
- F02N 7/00Starting apparatus having fluid-driven auxiliary engines or apparatus150
- F02N 9/00Starting of engines by supplying auxiliary pressure fluid to their working chambers72
- F02N 1/00Starting apparatus having hand cranks33
- F02N 13/00Starting of engines, or driving of starting apparatus by use of explosives2
Recent patents
- Gas turbine engine with electric machine in engine core6 Oct 2026US 12,753,721 B2Pratt & Whitney Canada Corp.
- Energy storage apparatus and control method for current interrupting device6 Oct 2026US 12,756,022 B2GS Yuasa International Ltd.
- Jump starter6 Oct 2026US 12,756,186 B2Vanair Manufacturing, Inc.
- Electrified military vehicle22 Sep 2026US 12,741,527 B1Oshkosh Defense, LLC
- Systems and methods for engine start15 Sep 2026US 12,736,015 B2Polaris Industries Inc.
- Controlling an engine start of a hybrid vehicle8 Oct 2026US 2026/0307645 A1
- Intelligent automatic start/stop for vehicle engines17 Sep 2026US 2026/0275950 A1GM Global Technology Operations LLC
- Idle stop control method and device for vehicle with internal combustion engine10 Sep 2026US 2026/0266253 A1Nissan Motor Co., Ltd.
- Power supply circuit and an emergency device3 Sep 2026US 2026/0257637 A1Shenzhen Carku Technology Co., Limited
- Engine starter20 Aug 2026US 2026/0243221 A1
Most cited
By later US patents
- Surgical stapling systems and staple cartridges for deploying surgical staples with tissue compression features2,424US 7,604,151 B2Ethicon Endo-Surgery, Inc. · 2009
- Surgical stapling instruments having a releasable staple-forming pocket2,400US 7,438,209 B1Ethicon Endo-Surgery, Inc. · 2008
- Staple cartridge cavity configurations2,227US 8,590,762 B2Ethicon Endo-Surgery, Inc. · 2013
- Surgical stapling systems and staple cartridges for deploying surgical staples with tissue compression features2,208US 8,186,560 B2Ethicon Endo-Surgery, Inc. · 2012
- Washer for use with a surgical stapling instrument2,143US 7,669,747 B2Ethicon Endo-Surgery, Inc. · 2010