F16D 2023/0643
Synchro friction clutches with flat plates, discs or lamellae
Official title: {Synchro friction clutches with flat plates, discs or lamellae}
F16D2023/0643 (Synchro friction clutches with flat plates, discs or lamellae) appears on 40 US grants and 24 published applications in this corpus.
Search patents in F16D- Granted patents
- 40
- Published applications
- 24
- Assignees
- 28
- Inventors
- 84
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 4 |
| 2014 | 1 | 1 |
| 2015 | 4 | 1 |
| 2016 | 2 | 1 |
| 2017 | 1 | 3 |
| 2018 | 1 | 2 |
| 2019 | 2 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Friction assisted dog clutch29 Jul 2025US 12,372,121 B1Dana Belgium N.V.
- Power transmission device22 Nov 2022US 11,506,246 B2Hitachi Construction Machinery Co., Ltd.
- Transmission and method for shifting a transmission27 Jul 2021US 11,073,181 B2Bayerische Motoren Werke Aktiengesellschaft
- Friction element for a frictional shifting element for a vehicle transmission24 Dec 2019US 10,514,072 B2ZF Friedrichshafen AG
- Internal combustion engine propulsion method and corresponding transmission design21 May 2019US 10,295,021 B2Tuskegee University
- Friction assisted dog clutch31 Jul 2025US 2025/0243913 A1Dana Belgium N.V.
- Friction clutch of a multispeed transmission and electric drive of a vehicle24 Apr 2025US 2025/0129823 A1Hoerbiger Antriebstechnik Holding GmbH
- Power Transmission Device28 Apr 2022US 2022/0128100 A1Hitachi Construction Machinery Co., Ltd.
- Power transmission device21 May 2020US 2020/0158187 A1Aisin Seiki Kabushiki Kaisha
- Transmission and Method for Shifting a Transmission21 Nov 2019US 2019/0353211 A1Bayerische Motoren Werke Aktiengesellschaft
Most cited
By later US patents
- Synchronizer clutch165US 5,975,263 ANew Venture Gear, Inc. · 1999
- Electromagnetic synchronizing and shifting clutch51US 5,052,534 ADana Corporation · 1991
- Multi-speed transmission38US 9,222,549 B2GM Global Technology Operations LLC · 2015
- Self-energized synchronizer31US 4,413,715 ADeere & Company · 1983
- Friction clutch synchronizer with resilient gear coupling24US 4,131,185 ADana Corporation · 1978