| 7075444 |
Temporary alarm locate with intermittent warning |
— |
2006-07-11 |
| 7030748 |
Enhanced visual signaling for an adverse condition detector |
— |
2006-04-18 |
| 6914534 |
Enhanced visual signaling for an adverse condition detector |
— |
2005-07-05 |
| 6836210 |
Adverse condition detector having modulated test signal |
— |
2004-12-28 |
| 6747375 |
Time controls with enhanced timing range |
— |
2004-06-08 |
| 6646566 |
Enhanced visual and audible signaling for sensed alarm condition |
— |
2003-11-11 |
| 6614347 |
Apparatus and method for providing alarm synchronization among multiple alarm devices |
— |
2003-09-02 |
| 6362743 |
Smoke alarm with dual sensing technologies and dual power sources |
Thomas W. Kondziolka |
2002-03-26 |
| 6351219 |
Photoelectric smoke detector |
Thomas W. Kondziolka |
2002-02-26 |
| 6348871 |
Adverse condition detection and notification apparatus |
Thomas W. Kondziolka, Brian J. Althoff |
2002-02-19 |
| 6288638 |
Heat detector having an increased accuracy alarm temperature threshold and improved low temperature testing capabilities |
Keith Corsello |
2001-09-11 |
| 5969600 |
Dangerous condition warning device incorporating a time-limited hush mode of operation to defeat an audible low battery warning signal |
— |
1999-10-19 |
| 5966079 |
Visual indicator for identifying which of a plurality of dangerous condition warning devices has issued an audible low battery warning signal |
— |
1999-10-12 |
| 5966078 |
Battery saving circuit for a dangerous condition warning device |
— |
1999-10-12 |
| 5886638 |
Method and apparatus for testing a carbon monoxide sensor |
— |
1999-03-23 |
| RE33920 |
Smoke detector having variable level sensitivity |
James McCrink |
1992-05-12 |
| 4965556 |
Combustion products detector having self-actuated periodic testing signal |
James Brodecki, Dale Fiene |
1990-10-23 |
| 4792797 |
Smoke detector having variable level sensitivity |
James McCrink |
1988-12-20 |