F02N 15/04
The gearing including disengaging toothed gears
Official title: the gearing including disengaging toothed gears
F02N15/04 (The gearing including disengaging toothed gears) appears on 924 US grants and 650 published applications in this corpus.
Search patents in F02N- Granted patents
- 924
- Published applications
- 650
- Assignees
- 179
- Inventors
- 1,129
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 12 | 0 |
| 1982 | 11 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 17 | 0 |
| 1986 | 11 | 0 |
| 1987 | 11 | 0 |
| 1988 | 14 | 0 |
| 1989 | 23 | 0 |
| 1990 | 47 | 0 |
| 1991 | 35 | 0 |
| 1992 | 31 | 0 |
| 1993 | 19 | 0 |
| 1994 | 16 | 0 |
| 1995 | 9 | 0 |
| 1996 | 8 | 0 |
| 1997 | 9 | 0 |
| 1998 | 26 | 0 |
| 1999 | 21 | 0 |
| 2000 | 13 | 0 |
| 2001 | 14 | 4 |
| 2002 | 12 | 24 |
| 2003 | 13 | 34 |
| 2004 | 27 | 42 |
| 2005 | 31 | 23 |
| 2006 | 15 | 21 |
| 2007 | 17 | 18 |
| 2008 | 13 | 24 |
| 2009 | 10 | 25 |
| 2010 | 20 | 39 |
| 2011 | 19 | 34 |
| 2012 | 23 | 44 |
| 2013 | 40 | 68 |
| 2014 | 37 | 42 |
| 2015 | 41 | 49 |
| 2016 | 45 | 28 |
| 2017 | 39 | 24 |
| 2018 | 23 | 28 |
| 2019 | 39 | 35 |
| 2020 | 30 | 24 |
| 2021 | 26 | 10 |
| 2022 | 16 | 8 |
| 2023 | 6 | 0 |
| 2024 | 2 | 0 |
| 2025 | 0 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electric drive assembly with planetary gear reduction8 Sep 2026US 12,732,069 B1Hydro-Gear Limited Partnership
- Drive and control system for an electrically-powered lawn mower2 Jun 2026US 12,647,002 B1Hydro-Gear Limited Partnership
- Integrated gear motor (IGM)26 May 2026US 12,637,995 B2ROLLS-ROYCE plc
- Electric machine gearbox and engine starter and power generator including gearbox7 May 2024US 11,976,620 B2Volvo Truck Corporation
- Electric starter system for motorcycles30 Apr 2024US 11,971,000 B2W & W Cycles AG
- Hybrid aircraft power plant and gearbox therefor31 Jul 2025US 2025/0242928 A1Pratt & Whitney Canada Corp.
- Integrated gear motor (igm)20 Mar 2025US 2025/0092850 A1ROLLS-ROYCE plc
- Internal combustion engine with electric starting system1 Dec 2022US 2022/0381176 A1Briggs & Stratton Corporation
- Electric machine gearbox and engine starter and power generator including gearbox1 Dec 2022US 2022/0381214 A1Volvo Truck Corporation
- Electric Starter System for Motorcycles13 Oct 2022US 2022/0325686 A1W & W Cycles AG
Most cited
By later US patents
- Combined electric starter and alternator system using a permanent magnet synchronous machine178US 4,862,009 AGeneral Electric Company · 1989
- System for restarting internal combustion engine when engine restart request occurs79US 8,036,815 B2Denso Corporation · 2011
- Engine starter and electric generator system73US 5,132,604 AHonda Giken Kogyo Kabushiki Kaisha · 1992
- Dual-motion apparatus58US 5,045,741 ABattelle Memorial Institute · 1991
- Reverse drive for small vehicles53US 4,763,538 AHonda Giken Kogyo Kabushiki Kaisha · 1988