G04C 23/38
Mechanisms measuring a chosen time interval independently of the time of day
Official title: Mechanisms measuring a chosen time interval independently of the time of day at which interval starts
G04C23/38 (Mechanisms measuring a chosen time interval independently of the time of day) appears on 38 US grants and 36 published applications in this corpus.
Search patents in G04C- Granted patents
- 38
- Published applications
- 36
- Assignees
- 20
- Inventors
- 65
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 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 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 2 | 2 |
| 2009 | 0 | 3 |
| 2010 | 0 | 2 |
| 2011 | 3 | 4 |
| 2012 | 0 | 2 |
| 2013 | 1 | 3 |
| 2014 | 0 | 3 |
| 2015 | 5 | 1 |
| 2016 | 3 | 3 |
| 2017 | 4 | 3 |
| 2018 | 3 | 1 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Clock device with automatic simulation of sunrise or sunset24 Mar 2026US 12,585,227 B2Lutron Technology Company LLC
- Slotted timer19 Mar 2024US 11,934,155 B2Time Timer, LLC
- Clock device with automatic simulation of sunrise or sunset14 Mar 2023US 11,604,438 B2Lutron Technology Company LLC
- Reward clock1 Sep 2020US 10,761,486 B2
- Clock device with automatic simulation of sunrise or sunset4 Aug 2020US 10,732,575 B2Lutron Technology Company LLC
- Clock Device with Automatic Simulation of Sunrise or Suset2 Jul 2026US 2026/0186448 A1Lutron Technology Company LLC
- Timepiece comprising azan analog counter3 Aug 2023US 2023/0244187 A1
- Clock Device with Automatic Simulation of Sunrise or Suset6 Jul 2023US 2023/0213892 A1Lutron Technology Company LLC
- Slotted Timer8 Jul 2021US 2021/0208543 A1Time Timer, LLC
- Clock Device with Automatic Simulation of Sunrise or Suset21 Jan 2021US 2021/0018877 A1Lutron Technology Company LLC
Most cited
By later US patents
- 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
- Electrical terminal module66US 8,975,543 B2Phoenix Contact GmbH & Co.KG · 2015
- Wall mounted programmable timer system46US 10,048,653 B2Leviton Manufacturing Co., Inc. · 2018
- Power device for a perfume sprayer46US 5,676,283 AKae Chuang International Co., Ltd. · 1997