F02N 15/02
Gearing between starting-engines and started engines
Official title: Gearing between starting-engines and started engines; Engagement or disengagement thereof
F02N15/02 (Gearing between starting-engines and started engines) appears on 1,362 US grants and 1,077 published applications in this corpus.
Search patents in F02N- Granted patents
- 1,362
- Published applications
- 1,077
- Assignees
- 284
- Inventors
- 1,986
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 8 | 0 |
| 1980 | 6 | 0 |
| 1981 | 13 | 0 |
| 1982 | 14 | 0 |
| 1983 | 6 | 0 |
| 1984 | 8 | 0 |
| 1985 | 18 | 0 |
| 1986 | 14 | 0 |
| 1987 | 13 | 0 |
| 1988 | 20 | 0 |
| 1989 | 29 | 0 |
| 1990 | 54 | 0 |
| 1991 | 37 | 0 |
| 1992 | 40 | 0 |
| 1993 | 27 | 0 |
| 1994 | 20 | 0 |
| 1995 | 10 | 0 |
| 1996 | 11 | 0 |
| 1997 | 11 | 0 |
| 1998 | 31 | 0 |
| 1999 | 22 | 0 |
| 2000 | 14 | 0 |
| 2001 | 19 | 7 |
| 2002 | 16 | 35 |
| 2003 | 17 | 44 |
| 2004 | 39 | 56 |
| 2005 | 39 | 39 |
| 2006 | 25 | 28 |
| 2007 | 22 | 28 |
| 2008 | 22 | 46 |
| 2009 | 21 | 47 |
| 2010 | 34 | 58 |
| 2011 | 24 | 49 |
| 2012 | 42 | 65 |
| 2013 | 61 | 91 |
| 2014 | 54 | 71 |
| 2015 | 72 | 82 |
| 2016 | 68 | 58 |
| 2017 | 60 | 45 |
| 2018 | 45 | 56 |
| 2019 | 69 | 61 |
| 2020 | 54 | 44 |
| 2021 | 47 | 26 |
| 2022 | 35 | 21 |
| 2023 | 19 | 5 |
| 2024 | 7 | 5 |
| 2025 | 3 | 6 |
| 2026 | 7 | 4 |
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
- Multi-speed hybrid transmission and transmission operating method19 May 2026US 12,630,005 B2Dana Performance Transmissions S.R.L.
- Method for detecting slip in a belt driven integrated starter system17 Mar 2026US 12,577,903 B2Ford Global Technologies, LLC
- Method and system for starting motorcycle engine25 Jun 2026US 2026/0177025 A1Motive Power Industry Co., Ltd.
- Starter and belt alternator starter control systems and methods4 Jun 2026US 2026/0153060 A1GM Global Technology Operations LLC
- Method for identifying belt slip in a starting system comprising bisg28 May 2026US 2026/0146664 A1Ford Global Technologies, LLC
- Dual arm tensioner with dynamic pivot2 Apr 2026US 2026/0092641 A1The Gates Corporation
- System and method for controlling a powertrain system of a vehicle16 Oct 2025US 2025/0319872 A1Volvo Truck Corporation
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
- Combination starter-generator80US 6,821,223 B2Delphi Technologies, Inc. · 2004
- 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
- Drive train of a motor vehicle having an internal combustion engine and a starter generator73US 9,074,656 B2Dr. Ing. h,c.F. Porsche Aktiengesellschaft · 2015