G04C 17/02
Indicating the time optically by electric means: by electric lamps
Official title: by electric lamps
G04C17/02 (Indicating the time optically by electric means: by electric lamps) appears on 21 US grants and 18 published applications in this corpus.
Search patents in G04C- Granted patents
- 21
- Published applications
- 18
- Assignees
- 14
- Inventors
- 49
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 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 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 3 | 1 |
| 2005 | 0 | 0 |
| 2006 | 2 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Timepiece, display control method, and storage medium11 Sep 2025US 2025/0284246 A1Casio Computer Co., Ltd.
- Timepiece comprising an external element provided with a zirconia portion8 Dec 2022US 2022/0390900 A1The Swatch Group Research and Development Ltd
Most cited
By later US patents
- Illumination devices for watches and other instruments257US 6,729,738 B2Luminary Logic Ltd. · 2004
- Multi-functional time indicating device with a multi-colored fiber optic display109US 6,690,623 B12004
- Projection clock34US 7,149,152 B1IDT Technology Limited · 2006
- Electronic appliance equipped with light emitting apparatus16US 5,936,914 ACasio Computer Co., Ltd. · 1999
- Luminous clock display using optical fibers10US 4,279,031 AVanzetti Infrared & Computer Systems, Inc. · 1981