G04B 9/005
Supervision of the state of winding: by optical indication of the amount
Official title: {by optical indication of the amount of winding}
G04B9/005 (Supervision of the state of winding: by optical indication of the amount) appears on 47 US grants and 49 published applications in this corpus.
Search patents in G04B- Granted patents
- 47
- Published applications
- 49
- Assignees
- 20
- Inventors
- 70
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 3 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 3 |
| 2008 | 2 | 2 |
| 2009 | 1 | 3 |
| 2010 | 3 | 1 |
| 2011 | 1 | 3 |
| 2012 | 1 | 1 |
| 2013 | 2 | 2 |
| 2014 | 3 | 1 |
| 2015 | 1 | 2 |
| 2016 | 3 | 3 |
| 2017 | 1 | 0 |
| 2018 | 2 | 3 |
| 2019 | 2 | 0 |
| 2020 | 0 | 4 |
| 2021 | 1 | 8 |
| 2022 | 2 | 3 |
| 2023 | 6 | 1 |
| 2024 | 5 | 2 |
| 2025 | 2 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Timepiece having decorative plate and support plate21 Jul 2026US 12,687,816 B2Seiko Epson Corporation
- Timepiece13 Jan 2026US 12,523,966 B2Seiko Epson Corporation
- Device for determining the position of a horological display10 Jun 2025US 12,326,696 B2The Swatch Group Research and Development Ltd
- Watch14 Jan 2025US 12,197,172 B2Seiko Epson Corporation
- Timepiece display device on several wheels26 Nov 2024US 12,153,384 B2ETA SA Manufacture Horlogere Suisse
- Power reserve indicator1 Oct 2026US 2026/0299517 A1Nivarox-FAR 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.
- Mechanical Watch And Method Of Assembling Mechanical Watch24 Jul 2025US 2025/0237998 A1Seiko Epson Corporation
- Timepiece25 Jan 2024US 2024/0027963 A1Seiko Epson Corporation
Most cited
By later US patents
- Timepiece comprising a mechanism driven by mechanical driving means and a power reserve indicating device14US 5,828,628 AAsulab S. A. · 1998
- Timepiece power reserve indicator device11US 6,685,352 B1Frederic Piguet S.A. · 2004
- Clock with a mainspring wound state indicator10US 6,166,999 ASeiko Instruments Inc. · 2000
- Oscillating weight for an automatic winding watch, including a power reserve indicator device integrated in said oscillating weight8US 8,342,740 B2Blancpain SA · 2013
- Watch movement comprising several barrels7US 7,452,123 B2Richemont International SA · 2008