| |
 |
|
Class Information
Number: 340/331
Name: Communications: electrical > Systems > Periodic or flashing
Description: Subject matter having a periodic or flashing signal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7564368 |
Semantic light |
Jul. 21, 2009 |
| 7557720 |
Personal emergency device |
Jul. 7, 2009 |
| 7479898 |
System and method for synchronizing lights powered by wild frequency AC |
Jan. 20, 2009 |
| 7423548 |
Multi-function egress path device |
Sep. 9, 2008 |
| 7403096 |
Apparatus and method for synchronizing visual/audible alarm units in an alarm system |
Jul. 22, 2008 |
| 7393121 |
Laser guidance emergency navigation method and system |
Jul. 1, 2008 |
| 7388514 |
Emergency light assembly |
Jun. 17, 2008 |
| 7375617 |
Evacuation appliance |
May. 20, 2008 |
| 7339475 |
Portable alarm system |
Mar. 4, 2008 |
| 7333004 |
Self-adjusting strobe |
Feb. 19, 2008 |
| 7327219 |
Enhanced alarm system for monitoring of patients |
Feb. 5, 2008 |
| 7298245 |
Emergency light |
Nov. 20, 2007 |
| 7298244 |
NBC marker light |
Nov. 20, 2007 |
| 7295105 |
Turn indicator unit for a relay-controlled flasher |
Nov. 13, 2007 |
| 7262707 |
Message sign alert device and method |
Aug. 28, 2007 |
| 7259655 |
Service attendant signalling device |
Aug. 21, 2007 |
| 7245226 |
Integrated microprocessor controlled alarm |
Jul. 17, 2007 |
| 7242314 |
Strobe unit with current limiter |
Jul. 10, 2007 |
| 7242292 |
Infrared communication system and method |
Jul. 10, 2007 |
| 7230526 |
Device and method for synchronizing a flasher frequency with a central flashing frequency |
Jun. 12, 2007 |
| 7218205 |
Variable candela strobe with constant trigger voltage |
May. 15, 2007 |
| 7218220 |
Signaling system |
May. 15, 2007 |
| 7187295 |
Sport fence |
Mar. 6, 2007 |
| 7183938 |
Rotating beacon system |
Feb. 27, 2007 |
| 7151458 |
Discreet bed-wetting alarm and method of use thereof |
Dec. 19, 2006 |
| 7129856 |
Illuminated sign for traffic control and method for functional monitoring of such a sign |
Oct. 31, 2006 |
| 7098774 |
Method and apparatus for monitoring and controlling warning systems |
Aug. 29, 2006 |
| 7079011 |
Apparatus and method for synchronizing visual/audible alarm units in an alarm system |
Jul. 18, 2006 |
| 7061392 |
System and method of disabling an evacuation location device |
Jun. 13, 2006 |
| 7030737 |
Apparatus, system, and method for indicating a level of network activity |
Apr. 18, 2006 |
| 7023336 |
Lamp control apparatus |
Apr. 4, 2006 |
| 7006003 |
Multi-candela emergency strobe light |
Feb. 28, 2006 |
| 7005978 |
Vehicle direction indication device with flash rate that does not appear to change when battery voltage varies |
Feb. 28, 2006 |
| 7005971 |
Building alarm system with synchronized strobes |
Feb. 28, 2006 |
| 6998961 |
Alarm clock with voice message input |
Feb. 14, 2006 |
| 6982637 |
Selectable flash sequence for a road vehicle light system |
Jan. 3, 2006 |
| 6980125 |
Warning light system for alerting pedestrians and passenger vehicle operators of an approaching emergency vehicle |
Dec. 27, 2005 |
| 6954137 |
Building alarm system with synchronized strobes |
Oct. 11, 2005 |
| 6952168 |
Audio cone module |
Oct. 4, 2005 |
| 6927673 |
Method and apparatus for adjusting audible and visual outputs of a mounted alarm device |
Aug. 9, 2005 |
| 6906616 |
Apparatus and method for synchronizing visual/audible alarm units in an alarm system |
Jun. 14, 2005 |
| 6858994 |
Traffic signal installation comprising an led-light source |
Feb. 22, 2005 |
| 6856241 |
Variable candela strobe |
Feb. 15, 2005 |
| 6842120 |
Luminous alerting device for indicating and emergency exit |
Jan. 11, 2005 |
| 6842111 |
Integrated multifunction flasher system |
Jan. 11, 2005 |
| 6822556 |
Methods and apparatus for a multi-mode night-light configured to emulate a traffic signal |
Nov. 23, 2004 |
| 6762689 |
Universal traffic signal display system and apparatus, and method of using the same |
Jul. 13, 2004 |
| 6758160 |
Hydrant locator |
Jul. 6, 2004 |
| 6753762 |
Signalling beacon |
Jun. 22, 2004 |
| 6741164 |
Building alarm system with synchronized strobes |
May. 25, 2004 |
|
|
|
