G04B 49/00
Time-pieces using the position of the sun, moon or stars
Official title: Time-pieces using the position of the sun, moon or stars {(devices for fixing the place and time by astronomical observations G01C21/00)}
G04B49/00 (Time-pieces using the position of the sun, moon or stars) appears on 69 US grants and 35 published applications in this corpus.
Search patents in G04B- Granted patents
- 69
- Published applications
- 35
- Assignees
- 21
- Inventors
- 94
- Latest grant
- 21 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 3 |
| 2006 | 2 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 3 | 2 |
| 2012 | 2 | 1 |
| 2013 | 3 | 3 |
| 2014 | 0 | 0 |
| 2015 | 0 | 3 |
| 2016 | 1 | 1 |
| 2017 | 2 | 2 |
| 2018 | 2 | 2 |
| 2019 | 1 | 4 |
| 2020 | 2 | 2 |
| 2021 | 1 | 0 |
| 2022 | 2 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Automatic identification method and device for planetary seismograph azimuth angles based on planetary sundial21 Jan 2025US 12,203,753 B2Institute of Geology and Geophysics, Chinese Academy of Sciences
- Method for coding and transmitting at least one solar time13 Feb 2024US 11,899,403 B2ETA SA Manufacture Horlogere Suisse
- Adjustable sundial assembly14 Jun 2022US 11,360,437 B2
- Running equation of time mechanism controlled by a differential device22 Mar 2022US 11,281,161 B2Montres Breguet S. A.
- Faux solar-driven clock14 Sep 2021US 11,119,448 B2
- Watch comprising a horology movement comprising a moon phase display device and an earth phase display device2 Apr 2026US 2026/0093209 A1ETA SA Manufacture Horlogere Suisse
- Astronomical display1 May 2025US 2025/0138487 A1
- Growing panes20 Feb 2025US 2025/0060707 A1
- Automatic identification method and device for planetary seismograph azimuth angles based on planetary sundial26 Dec 2024US 2024/0426606 A1Institute of Geology and Geophysics, Chinese Academy of Sciences
- MicroDial -- Miniaturized apparatus for solar time keeping24 Aug 2023US 2023/0266715 A1The Government of the United States of America, as represented by the Secretary of the Navy
Most cited
By later US patents