G04B 13/008
Differentials
Official title: {Differentials}
G04B13/008 (Differentials) appears on 22 US grants and 20 published applications in this corpus.
Search patents in G04B- Granted patents
- 22
- Published applications
- 20
- Assignees
- 14
- Inventors
- 32
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 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 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 4 |
| 2017 | 2 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 2 |
| 2020 | 0 | 1 |
| 2021 | 0 | 6 |
| 2022 | 2 | 1 |
| 2023 | 5 | 0 |
| 2024 | 3 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Timepiece including a display member for displaying a local time HT and a display member for displaying a GMT time18 Aug 2026US 12,710,727 B2Manufacture D'Horlogerie Audemars Piguet SA
- Horological mechanism with counting chain26 Nov 2024US 12,153,379 B2Rolex SA
- Variable-geometry timepiece display mechanism with resilient hand30 Jan 2024US 11,886,147 B2Montres Breguet S. A.
- Variable-geometry timepiece display mechanism with resilient hand2 Jan 2024US 11,860,577 B2Montres Breguet S. A.
- Timepiece display mechanism comprising at least one resilient hand12 Dec 2023US 11,841,684 B2Montres Breguet S. A.
- Horology movement comprising a power reserve display device comprising a planetary mechanism21 May 2026US 2026/0140477 A1Montres Breguet S. A.
- Horology movement comprising a power reserve display device21 May 2026US 2026/0140478 A1Montres Breguet S. A.
- Timepiece including a display member for displaying a local time ht and a display member for display27 Feb 2025US 2025/0068127 A1Manufacture D'Horlogerie Audemars Piguet SA
- Horological mechanism with counting chain27 Jan 2022US 2022/0026851 A1Rolex SA
- Horological display mechanism with elastic hand2 Dec 2021US 2021/0373496 A1Montres Breguet S. A.
Most cited
By later US patents
- Astronomical wrist-watch24US 4,711,583 AUlysse Nardin S.A. · 1987
- Timepiece power reserve indicator device11US 6,685,352 B1Frederic Piguet S.A. · 2004
- Mechanism for self-wind watches4US 4,174,607 ATimex Corporation · 1979
- Timepiece display mechanism with a resilient hand3US 11,537,080 B2Montres Breguet S. A. · 2022
- Ringing mechanism3US 7,965,585 B2Christophe Claret S.A. · 2011