F16D 23/025
Synchro rings
Official title: {Synchro rings}
F16D23/025 (Synchro rings) appears on 171 US grants and 116 published applications in this corpus.
Search patents in F16D- Granted patents
- 171
- Published applications
- 116
- Assignees
- 105
- Inventors
- 305
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 8 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 0 |
| 2003 | 2 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 4 |
| 2006 | 4 | 4 |
| 2007 | 1 | 2 |
| 2008 | 1 | 8 |
| 2009 | 2 | 4 |
| 2010 | 4 | 3 |
| 2011 | 0 | 4 |
| 2012 | 2 | 7 |
| 2013 | 5 | 3 |
| 2014 | 5 | 5 |
| 2015 | 5 | 10 |
| 2016 | 6 | 9 |
| 2017 | 10 | 11 |
| 2018 | 5 | 8 |
| 2019 | 8 | 7 |
| 2020 | 7 | 8 |
| 2021 | 11 | 7 |
| 2022 | 5 | 4 |
| 2023 | 3 | 3 |
| 2024 | 5 | 1 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Transmission powertrain vehicle and method13 Jan 2026US 12,523,274 B2Traton AB
- Lay-shaft assembly for use in a vehicle transmission3 Dec 2024US 12,158,205 B2Punch Powertrain Psa E-Transmissions N.V.
- Transmission for an at least partially electrically driven vehicle, and synchronization device for such a transmission1 Oct 2024US 12,104,655 B2Schaeffler Technologies AG & Co. KG
- Clutch arrangement for a hybrid vehicle powertrain24 Sep 2024US 12,097,842 B2Delphi Technologies IP Limited
- Vehicle clutch5 Mar 2024US 11,920,639 B2Taian Shengtai Auto Parts Co., Ltd.
- Transmission powertrain vehicle and method29 May 2025US 2025/0172194 A1Scania CV AB
- Sliding sleeve22 May 2025US 2025/0163975 A1Miba Sinter Austria GmbH
- Clutch arrangement for a hybrid vehicle powertrain15 Feb 2024US 2024/0051517 A1Delphi Technologies IP Limited
- Two-speed transmission for an electric drive system, and drive system including such a two-speed transmission21 Sep 2023US 2023/0296162 A1HöHn GmbH
- Improved lay-shaft assembly for use in a vehicle transmission20 Jul 2023US 2023/0228328 A1Punch Power Train Psa E-Transmissions N.V.
Most cited
By later US patents
- Synchronizing ring40US 4,267,912 ABorg-Warner-Stieber GmbH · 1981
- Friction ring for clutches or brakes, and a method and device for producing the friction ring35US 4,770,283 AHoerbiger & Co. · 1988
- Method for the production of friction plates, synchronizing blocker rings or similar structures34US 4,878,282 ABorg-Warner Automotive, Inc. · 1989
- Friction clutch or friction brake27US 5,143,192 ASinterstahl GmbH · 1992
- Fabric arrangement and method for controlling fluid flow27US 5,615,758 A1997