B66D 1/7415
Friction drives
Official title: {Friction drives, e.g. pulleys, having a cable winding angle of less than 360 degrees}
B66D1/7415 (Friction drives) appears on 103 US grants and 55 published applications in this corpus.
Search patents in B66D- Granted patents
- 103
- Published applications
- 55
- Assignees
- 62
- Inventors
- 138
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 7 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 1 | 3 |
| 2008 | 1 | 1 |
| 2009 | 3 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 1 |
| 2013 | 1 | 4 |
| 2014 | 1 | 4 |
| 2015 | 1 | 4 |
| 2016 | 6 | 4 |
| 2017 | 3 | 1 |
| 2018 | 2 | 3 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 2 |
| 2022 | 0 | 7 |
| 2023 | 0 | 4 |
| 2024 | 7 | 3 |
| 2025 | 2 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Forestry winch1 Sep 2026US 12,722,945 B2
- Rope grab device for a portable power driven system10 Mar 2026US 12,570,505 B2Skylotec GmbH
- Winch19 Aug 2025US 12,391,524 B2Hall Logic, Inc.
- Transfer device for maintaining an electrical or optical connection20 May 2025US 12,304,772 B2Thales
- Rope driver, portable device for driving a rope comprising a rope driver, kit, method and use3 Dec 2024US 12,158,136 B2
- Rope access device3 Jul 2025US 2025/0213891 A1Fallprotec
- Portable power-driven system24 Apr 2025US 2025/0128921 A1Skylotec GmbH
- Rotation Control Device and Winch2 May 2024US 2024/0140767 A1Hall Labs LLC
- Hitch mount for hoist21 Mar 2024US 2024/0092616 A1Hubbell Incorporated
- Forestry Winch4 Jan 2024US 2024/0002199 A1
Most cited
By later US patents
- Microcomputer with on-board chip selects and programmable bus stretching60US 5,151,986 AMotorola, Inc. · 1992
- Powered rope climbing apparatus54US 7,513,334 B22009
- Remote retractable lifeline extender45US 5,762,282 AD B Industries, Inc. · 1998
- Winch and improved sheave25US 5,722,640 A1998
- User interface for a portable power driven system21US 9,850,113 B2Actsafe Systems AB · 2017