G04C 23/00
Clocks with attached or built-in means operating any device at preselected times
Official title: Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals (if restricted to producing acoustic time signals by electrical means G04C21/00)
G04C23/00 (Clocks with attached or built-in means operating any device at preselected times) appears on 158 US grants and 88 published applications in this corpus.
Search patents in G04C- Granted patents
- 158
- Published applications
- 88
- Assignees
- 82
- Inventors
- 232
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 10 | 0 |
| 1978 | 11 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 2 | 4 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 3 | 5 |
| 2009 | 2 | 7 |
| 2010 | 2 | 5 |
| 2011 | 4 | 8 |
| 2012 | 4 | 5 |
| 2013 | 4 | 5 |
| 2014 | 2 | 6 |
| 2015 | 8 | 7 |
| 2016 | 10 | 7 |
| 2017 | 8 | 5 |
| 2018 | 5 | 3 |
| 2019 | 3 | 2 |
| 2020 | 3 | 2 |
| 2021 | 0 | 2 |
| 2022 | 1 | 2 |
| 2023 | 2 | 3 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multifunction sleep training device with remote locking mechanism and methods of operation thereof31 Mar 2026US 12,589,217 B2Hatch Baby, Inc.
- Clock device with automatic simulation of sunrise or sunset24 Mar 2026US 12,585,227 B2Lutron Technology Company LLC
- Display panel and wearable device7 Oct 2025US 12,436,564 B2Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Hand display control device, hand display device, and recording medium29 Jul 2025US 12,372,927 B2Casio Computer Co., Ltd.
- Slotted timer19 Mar 2024US 11,934,155 B2Time Timer, LLC
- Multifunction sleep training device with remote locking mechanism and methods of operation thereof9 Jul 2026US 2026/0192082 A1Hatch Baby, Inc.
- Clock Device with Automatic Simulation of Sunrise or Suset2 Jul 2026US 2026/0186448 A1Lutron Technology Company LLC
- Method and system for inducing comfortable awakening in sleep state18 Jun 2026US 2026/0166258 A1SB Solutions Inc.
- Hand display control device, hand display device, and recording medium30 Oct 2025US 2025/0334929 A1Casio Computer Co., Ltd.
- Display panel and wearable device1 Aug 2024US 2024/0255990 A1Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
Most cited
By later US patents
- Programming and selection monitoring system for television receivers329US 4,170,782 A1979
- Automatic programming system for television receivers292US 4,081,753 A1978
- Electronic timer and thermoswitch device165US 4,079,366 A1978
- Automatic pump-type spray dispenser98US 5,249,718 ATechnical Concepts, LLC · 1993
- Controllable door handle sanitizer system and method66US 7,320,418 B2Hyso Technology LLC · 2008