Timepiece
US-12523966-B2 · Jan 13, 2026 · US
by optical indication of the amount of winding
by optical indication of the amount of winding · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G04B9/005 |
| Official title | {by optical indication of the amount of winding} |
| Display label | by optical indication of the amount of winding |
| Total patents | 48 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2018 | 5 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 9 |
| 2022 | 4 |
| 2023 | 7 |
| 2024 | 7 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Mechanical Watch And Method Of Assembling Mechanical Watch
US-2025237998-A1 · Jul 24, 2025 · US
Device for determining the position of a horological display
US-12326696-B2 · Jun 10, 2025 · US
Watch
US-12197172-B2 · Jan 14, 2025 · US
Timepiece display device on several wheels
US-12153384-B2 · Nov 26, 2024 · US
Mechanical horological movement with power reserve detection
US-11971687-B2 · Apr 30, 2024 · US
Variable-geometry timepiece display mechanism with resilient hand
US-11886147-B2 · Jan 30, 2024 · US
Timepiece
US-2024027963-A1 · Jan 25, 2024 · US
Watch
US-11868091-B2 · Jan 9, 2024 · US
Timepiece
US-2024004347-A1 · Jan 4, 2024 · US
Variable-geometry timepiece display mechanism with resilient hand
US-11860577-B2 · Jan 2, 2024 · US
Timepiece display mechanism comprising at least one resilient hand
US-11841684-B2 · Dec 12, 2023 · US
Horological display mechanism with elastic hand
US-11841685-B2 · Dec 12, 2023 · US
Horological display mechanism with an elastic hand
US-11774909-B2 · Oct 3, 2023 · US
System and method for determining at least one parameter relating to an angular movement of an arbor
US-11762336-B2 · Sep 19, 2023 · US
Timepiece
US-11625004-B2 · Apr 11, 2023 · US
Watch
US-2023057778-A1 · Feb 23, 2023 · US
Timepiece
US-11550261-B2 · Jan 10, 2023 · US
Timepiece display mechanism with a resilient hand
US-11537080-B2 · Dec 27, 2022 · US
Power reserve indicator mechanism for horology
US-11526130-B2 · Dec 13, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G04B9/005?
- CPC G04B9/005 is the Cooperative Patent Classification code for “by optical indication of the amount of winding.”
- How many patents are filed under CPC G04B9/005 (by optical indication of the amount of winding)?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC G04B9/005 growing?
- Publication counts under this code: 7 in 2024 vs 3 in 2025 (latest complete years).