G04C 17/00
Indicating the time optically by electric means
Official title: Indicating the time optically by electric means (G04C19/00 takes precedence)
G04C17/00 (Indicating the time optically by electric means) appears on 372 US grants and 360 published applications in this corpus.
Search patents in G04C- Granted patents
- 372
- Published applications
- 360
- Assignees
- 139
- Inventors
- 640
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 13 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 5 |
| 2002 | 8 | 4 |
| 2003 | 10 | 10 |
| 2004 | 11 | 10 |
| 2005 | 6 | 14 |
| 2006 | 13 | 21 |
| 2007 | 8 | 20 |
| 2008 | 11 | 10 |
| 2009 | 7 | 8 |
| 2010 | 4 | 6 |
| 2011 | 5 | 8 |
| 2012 | 5 | 8 |
| 2013 | 8 | 14 |
| 2014 | 14 | 11 |
| 2015 | 12 | 22 |
| 2016 | 19 | 20 |
| 2017 | 18 | 39 |
| 2018 | 25 | 25 |
| 2019 | 17 | 26 |
| 2020 | 18 | 16 |
| 2021 | 13 | 22 |
| 2022 | 8 | 10 |
| 2023 | 12 | 8 |
| 2024 | 15 | 7 |
| 2025 | 8 | 11 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G04C 17/005Indicating the time optically by electric means: by discs121
- G04C 17/0091Combined electro-optical and electro-mechanical displays102
- G04C 17/02Indicating the time optically by electric means: by electric lamps21
- G04C 17/0008Indicating the time optically by electric means: by bands13
- G04C 17/0075Indicating the time optically by electric means: by drums or drum-like devices7
- G04C 17/0025Indicating the time optically by electric means: by flaps5
- G04C 17/0041Indicating the time optically by electric means: by a combination of different2
Recent patents
- Electronic device including solar battery and timepiece including solar battery25 Aug 2026US 12,717,281 B2Casio Computer Co., Ltd.
- Watch assembly5 May 2026US 12,619,197 B2Shenzhen CIGA Design Co., Ltd.
- Information display mechanism, timepiece movement, and timepiece14 Apr 2026US 12,602,010 B2Seiko Watch Kabushiki Kaisha
- Pointer display apparatus and pointer operation control method7 Apr 2026US 12,596,333 B2Casio Computer Co., Ltd.
- Visual indicator and fluid dispenser17 Mar 2026US 12,578,684 B2Preciflex SA
- Timepiece with analog and electronics displays2 Jul 2026US 2026/0186447 A1
- Module and timepiece equipped with module25 Jun 2026US 2026/0177988 A1Casio Computer Co., Ltd.
- Watch with display lighting device18 Jun 2026US 2026/0169436 A1The Swatch Group Research and Development Ltd
- Watch with a mechano-electric generator19 Mar 2026US 2026/0079448 A1The Swatch Group Research and Development Ltd
- Watch comprising an analogue display lighting device19 Mar 2026US 2026/0079449 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
- Watch with a 24-hour watch face109US 6,359,839 B12002
- Multi-functional time indicating device with a multi-colored fiber optic display109US 6,690,623 B12004
- Solid state touch switch95US 4,063,111 A1977
- Date mechanism for clockwork movement95US 6,081,483 AFrederic Piguet S.A. · 2000