IP Library › Granted Patent US 6,748,792
Granted Patent Utility
US 6,748,792 · App. 10/384,109

Impairment detection and interlock system with tester identification

Inventors: Richard C. Freund, Thomas E. Knowles, Sherman Couch
Patented Case View Patent ↗
Granted: Jun 15, 2004 Filed: Mar 7, 2003
Inventors
Richard C. Freund
Thomas E. Knowles
Sherman Couch
Assignee (at issue)
LifeSafer Interlock

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Quick Facts
Patent No.
US 6,748,792
App. No.
10/384,109
Filed
2003-03-07
Granted
2004-06-15
Kind
B1