F16H 61/664
Friction gearings
F16H61/664 (Friction gearings) appears on 574 US grants and 481 published applications in this corpus.
Search patents in F16H- Granted patents
- 574
- Published applications
- 481
- Assignees
- 108
- Inventors
- 607
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 7 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 10 | 0 |
| 1998 | 9 | 0 |
| 1999 | 11 | 0 |
| 2000 | 25 | 0 |
| 2001 | 26 | 11 |
| 2002 | 19 | 27 |
| 2003 | 36 | 24 |
| 2004 | 10 | 20 |
| 2005 | 15 | 65 |
| 2006 | 32 | 10 |
| 2007 | 44 | 34 |
| 2008 | 24 | 16 |
| 2009 | 14 | 16 |
| 2010 | 15 | 14 |
| 2011 | 7 | 15 |
| 2012 | 9 | 12 |
| 2013 | 21 | 31 |
| 2014 | 29 | 30 |
| 2015 | 20 | 24 |
| 2016 | 20 | 16 |
| 2017 | 21 | 24 |
| 2018 | 19 | 32 |
| 2019 | 18 | 20 |
| 2020 | 18 | 16 |
| 2021 | 10 | 7 |
| 2022 | 15 | 8 |
| 2023 | 4 | 2 |
| 2024 | 7 | 3 |
| 2025 | 1 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16H 61/6649Characterised by the means for controlling the torque transmitting capability of the211
- F16H 61/6648Controlling of shifting being influenced by a signal derived from the engine194
- F16H 61/6646Controlling shifting exclusively as a function of speed39
- F16H 2061/6641Control for modifying the ratio control characteristicIndexing code36
- F16H 61/6645Controlling shifting exclusively as a function of speed and torque19
- F16H 61/6647Controlling shifting exclusively as a function of torque7
Recent patents
- Systems and methods for automatic configuration and automatic calibration of continuously variable transmissions and bicycles having continuously variable transmissions25 Aug 2026US 12,715,546 B2enviolo B.V.
- Passive calibration of a mechatronic device mated to a continuously variable planetary (CVP) hub3 Mar 2026US 12,565,924 B2enviolo B.V.
- Passive calibration of a mechatronic device mated to a continuously variable planetary (CVP) hub25 Feb 2025US 12,234,892 B2enviolo B.V.
- Power split transmission structure31 Dec 2024US 12,181,030 B2Deere & Company
- Systems and methods for automatic configuration and automatic calibration of continuously variable transmissions and bicycles having continuously variable transmissions19 Nov 2024US 12,145,690 B2enviolo B.V.
- Passive calibration of a mechatronic device mated to a continuously variable planetary (cvp) hub9 Jul 2026US 2026/0194127 A1enviolo B.V.
- Power system coupling of a multi-speed transmission to a prime mover21 May 2026US 2026/0139729 A1Allison Transmission, Inc.
- Passive calibration of a mechatronic device mated to a continuously variable planetary (cvp) hub12 Jun 2025US 2025/0189017 A1enviolo B.V.
- Systems and methods for automatic configuration and automatic calibration of continuously variable transmissions and bicycles having continuously variable transmissions24 Apr 2025US 2025/0128787 A1enviolo B.V.
- Passive calibration of a mechatronic device mated to a continuously variable planetary (cvp) hub30 May 2024US 2024/0175481 A1Fallbrook Intellectual Property Company LLC
Most cited
By later US patents
- Continuously variable transmission243US 6,419,608 B1Motion Technologies, LLC · 2002
- Continuously variable transmission242US 6,241,636 B1Motion Technologies, LLC · 2001
- Continuously variable transmission239US 6,689,012 B2Motion Technologies, LLC · 2004
- Continuously variable transmission238US 6,322,475 B22001
- Position servo systems234US 6,066,067 ATorotrak Limited · 2000