F16H 13/00
Gearing for conveying rotary motion with constant gear ratio by friction between
Official title: Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
F16H13/00 (Gearing for conveying rotary motion with constant gear ratio by friction between) appears on 392 US grants and 302 published applications in this corpus.
Search patents in F16H- Granted patents
- 392
- Published applications
- 302
- Assignees
- 225
- Inventors
- 624
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 7 | 0 |
| 1979 | 2 | 0 |
| 1980 | 8 | 0 |
| 1981 | 7 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 11 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 10 | 0 |
| 1988 | 8 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 11 | 0 |
| 1992 | 8 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 0 |
| 2002 | 7 | 5 |
| 2003 | 1 | 7 |
| 2004 | 7 | 15 |
| 2005 | 4 | 6 |
| 2006 | 6 | 6 |
| 2007 | 5 | 10 |
| 2008 | 9 | 17 |
| 2009 | 9 | 14 |
| 2010 | 2 | 12 |
| 2011 | 4 | 8 |
| 2012 | 14 | 11 |
| 2013 | 15 | 12 |
| 2014 | 11 | 21 |
| 2015 | 11 | 15 |
| 2016 | 11 | 16 |
| 2017 | 14 | 26 |
| 2018 | 14 | 21 |
| 2019 | 24 | 15 |
| 2020 | 12 | 10 |
| 2021 | 15 | 15 |
| 2022 | 14 | 19 |
| 2023 | 11 | 5 |
| 2024 | 10 | 9 |
| 2025 | 8 | 7 |
| 2026 | 4 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for transmitting torque21 Jul 2026US 12,687,072 B1Schlumberger Technology Corporation
- Continuously variable transmission drive system16 Jun 2026US 12,654,805 B2Toka Technologies Limited
- System and method for leveraging force21 Apr 2026US 12,607,250 B2
- Friction transmission device10 Feb 2026US 12,546,383 B2Sumitomo Heavy Industries, Ltd.
- Rotary-driven power generation device23 Dec 2025US 12,506,383 B2
- Torque transmission mechanism30 Oct 2025US 2025/0334170 A1Seiko Epson Corporation
- Roller bearing and gear assembly12 Jun 2025US 2025/0189016 A1Taurus Technologies Holdings, Inc.
- Rotary-driven power generation device12 Jun 2025US 2025/0192643 A1
- High-density actuator with in-motor transmission8 May 2025US 2025/0146561 A1
- Automobile steering simulator stucture20 Mar 2025US 2025/0094662 A1Shenzhen Cammus Electronic Technology Co., Ltd
Most cited
By later US patents
- Traction type transmission232US 5,037,361 A1991
- Planetary traction drive transmission231US 6,406,399 B1The Timken Company · 2002
- Traction drive transmission229US 6,095,940 AThe Timken Company · 2000
- Loading cam device216US 5,379,661 ANissan Motor Co., Ltd. · 1995
- Friction-wheel planetary gear for converting a rotating movement into a back and forth movement with decreased frequency185US 7,086,979 B2Gustav Klauke GmbH · 2006