F16H 3/423
The teeth being arranged on a surface of generally conical shape
Official title: {the teeth being arranged on a surface of generally conical shape}
F16H3/423 (The teeth being arranged on a surface of generally conical shape) appears on 26 US grants and 17 published applications in this corpus.
Search patents in F16H- Granted patents
- 26
- Published applications
- 17
- Assignees
- 9
- Inventors
- 38
- Latest grant
- 18 Feb 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 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 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 1 |
| 2003 | 1 | 1 |
| 2004 | 2 | 2 |
| 2005 | 2 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 3 |
| 2008 | 2 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 4 |
| 2016 | 1 | 2 |
| 2017 | 3 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Speed shifting apparatus, transmission control method, steering system, and steering control method5 Jan 2023US 2023/0001981 A1Huawei Technologies Co., Ltd.
- Transmission based on gears with spiral toothed transitions17 Aug 2017US 2017/0234409 A1Limited Liability Company “Scientific Technical Company Alpha Cube”
- Continuously variable transmission on a motorcycle1 Dec 2016US 2016/0347413 A1Radial Engine Innovations Holding LLC
- Continuously variable transmission on a motorcycle25 Feb 2016US 2016/0052601 A1Radial Engine Innovations Holding LLC
- Variable transmission gearing system17 Dec 2015US 2015/0360750 A1Mega Unit Technology Limited
Most cited
By later US patents
- Stack of gears and transmission system utilizing the same177US 6,499,373 B22002
- Gear drive having continuously variable drive ratio40US 6,802,229 B12004
- Variable ratio power transmission means39US 4,630,495 AFairey Hydraulics Limited · 1986
- Continuously variable transmission with epicyclic constant mesh gearing12US 4,680,985 A1987
- Transmission mechanism8US 5,069,078 A1991