F01L 2001/3521
Harmonic drive of flexspline type
Official title: {Harmonic drive of flexspline type}
F01L2001/3521 (Harmonic drive of flexspline type) appears on 87 US grants and 75 published applications in this corpus.
Search patents in F01L- Granted patents
- 87
- Published applications
- 75
- Assignees
- 25
- Inventors
- 111
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 3 |
| 2012 | 1 | 5 |
| 2013 | 5 | 6 |
| 2014 | 6 | 2 |
| 2015 | 2 | 5 |
| 2016 | 2 | 4 |
| 2017 | 3 | 1 |
| 2018 | 4 | 8 |
| 2019 | 3 | 9 |
| 2020 | 10 | 11 |
| 2021 | 6 | 5 |
| 2022 | 7 | 8 |
| 2023 | 8 | 2 |
| 2024 | 5 | 2 |
| 2025 | 1 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Actuating gear and method for assembling an actuating gear of an electromechanical camshaft adjuster28 Jul 2026US 12,692,804 B2Schaeffler Technologies AG & Co. KG
- Backside emitter solar cell structure having a heterojunction24 Feb 2026US 12,563,844 B2Meyer Burger (Germany) GmbH
- Electric camshaft phaser assembly including a flexible gear with a retainer28 Oct 2025US 12,454,898 B2Schaeffler Technologies AG & Co. KG
- High reduction ratio transmission28 May 2024US 11,994,199 B2Maxon International AG
- Backside emitter solar cell structure having a heterojunction and method and device for producing the same23 Apr 2024US 11,967,662 B2Meyer Burger (Germany) GmbH
- Electric camshaft phaser assembly including a flexible gear with a retainer9 Oct 2025US 2025/0314183 A1Schaeffler Technologies AG & Co. KG
- Actuating gear and method for assembling an actuating gear of an electromechanical camshaft adjuster8 Aug 2024US 2024/0263571 A1Schaeffler Technologies AG & Co. KG
- Backside emitter solar cell structure having a heterojunction18 Apr 2024US 2024/0128392 A1Meyer Burger (Germany) GmbH
- Gear device, camshaft adjuster having the gear device, and internal combustion engine31 Aug 2023US 2023/0272727 A1Schaeffler Technologies AG & Co. KG
- Backside emitter solar cell structure having a heterojunction and method and device for producing the same8 Jun 2023US 2023/0178672 A1Meyer Burger (Germany) GmbH
Most cited
By later US patents
- Dual-acting apparatus for variable valve timing and the like87US 5,417,186 AClemson University · 1995
- Harmonic speed changer75US 4,840,090 AMitsubishi Denki Kabushiki Kaisha · 1989
- Method for continuous camlobe phasing60US 4,771,742 AClemson University · 1988
- Tooth profile of one of circular splines of flat-shaped strain wave gearing50US 4,974,470 AHarmonic Drive Systems Inc. · 1990
- Redundant motor reducer drive47US 3,986,412 AUSM Corporation · 1976