G04B 13/028
Wheels in which the teeth are conic, contrate, etc
Official title: {wheels in which the teeth are conic, contrate, etc; also column wheels construction (start-stop mechanisms with column wheels G04F7/0847)}
G04B13/028 (Wheels in which the teeth are conic, contrate, etc) appears on 18 US grants and 16 published applications in this corpus.
Search patents in G04B- Granted patents
- 18
- Published applications
- 16
- Assignees
- 18
- Inventors
- 31
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 2 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 2 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 3 |
| 2022 | 1 | 3 |
| 2023 | 2 | 1 |
| 2024 | 2 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Horological movement comprising a movable member provided with means for variably adjusting the inclination30 Sep 2025US 12,429,819 B2Blancpain SA
- Clockwork selector mechanism19 Mar 2024US 11,934,156 B2Omega SA
- Watch component and watch9 Jan 2024US 11,868,089 B2Seiko Epson Corporation
- Disengagement of two gear trains22 Aug 2023US 11,733,654 B2Omega SA
- Display change mechanism27 Jun 2023US 11,687,034 B2Blancpain SA
- Gear assembly, timepiece, and gear assembly manufacturing method27 Mar 2025US 2025/0103005 A1Casio Computer Co., Ltd.
- Horological movement comprising a movable member provided with means for variably adjusting the inclination15 Jun 2023US 2023/0185239 A1Blancpain SA
- Cam-type timepiece component1 Sep 2022US 2022/0276609 A1Rolex SA
- Cam-type timepiece component14 Jul 2022US 2022/0221824 A1Rolex SA
- Clockwork selector mechanism10 Mar 2022US 2022/0075326 A1Omega SA
Most cited
By later US patents
- Indexing gear for timekeeping devices14US 4,473,301 ATimex Corporation · 1984
- Column wheel and chronograph mechanism including the same11US 8,920,021 B2ETA SA Manufacture Horlogere Suisse · 2014
- Slip mechanism of clock8US 4,127,984 ASeiko Koki Kabushiki Kaisha · 1978
- Instrument for measuring intervals of time comprising a ringing mechanism6US 7,292,505 B2Glashütter Uhrenbetrieb GmbH · 2007
- Time correction mechanism for an analog timepiece using plastic gears for transmitting the rotation of the manual operation member to the hands5US 4,853,909 ACasio Computer Co., Ltd. · 1989