Y10S 70/51
Light sensitive control means
Y10S70/51 (Light sensitive control means) appears on 30 US grants and 0 published applications in this corpus.
Search patents in Y10S- Granted patents
- 30
- Published applications
- 0
- Assignees
- 15
- Inventors
- 45
- Latest grant
- 16 Apr 2002
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 6 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Apparatus for insertion of a key therein16 Apr 2002US 6,370,929 B1Kabushiki Kaisha Tokai Rika Denki Seisakusho
- Lockset with motion detection and ambient light sensors7 Dec 1999US 5,996,383 AEmhart Inc.
- Multi-purpose locking device using laser and optical fibers17 Nov 1998US 5,838,232 A
- Multi-light coded electronic security lock3 Sep 1996US 5,552,587 A
- Door locking system having a sensor for controlling activating/deactivating of a locking device21 Jun 1994US 5,321,963 AIlco Unican Inc.
No published applications in this class yet.
Most cited
By later US patents
- Electronic security device and method82US 4,286,305 A1981
- Watch apparatus and method for a universal electronic locking system81US 4,573,046 AUniversal Photonics, Inc. · 1986
- Security system employing optical key shape reader62US 4,868,559 AUniversal Photonix, Inc. · 1989
- Optical key reader for door locks58US 4,079,605 ASchlage Lock Company LLC · 1978
- Security system employing optical key shape reader54US 5,132,661 AUniversal Photonix, Inc. · 1992