F21V 23/0492
The sensor detecting a change in orientation, a movement or an acceleration
Official title: {the sensor detecting a change in orientation, a movement or an acceleration of the lighting device, e.g. a tilt switch}
F21V23/0492 (The sensor detecting a change in orientation, a movement or an acceleration) appears on 313 US grants and 350 published applications in this corpus.
Search patents in F21V- Granted patents
- 313
- Published applications
- 350
- Assignees
- 163
- Inventors
- 514
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 10 |
| 2009 | 2 | 7 |
| 2010 | 6 | 10 |
| 2011 | 6 | 10 |
| 2012 | 5 | 14 |
| 2013 | 10 | 13 |
| 2014 | 11 | 17 |
| 2015 | 15 | 13 |
| 2016 | 23 | 24 |
| 2017 | 20 | 35 |
| 2018 | 20 | 24 |
| 2019 | 28 | 21 |
| 2020 | 26 | 28 |
| 2021 | 28 | 20 |
| 2022 | 25 | 22 |
| 2023 | 23 | 18 |
| 2024 | 15 | 17 |
| 2025 | 15 | 18 |
| 2026 | 20 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Selected direction lighting device131US 6,030,099 A2000
- Motion sensitive light and battery assembly switched on and off by the oscillation of a helical spring105US 5,550,721 ACarmen & Thomas Rapisarda Enterprises · 1996
- Lighted drinking glass92US 5,211,699 A1993
- Cordless LED headlight and control thereof57US 9,791,138 B1Designs for Vision, Inc. · 2017
- LED night light has projection or image feature54US 7,871,192 B22011