Assignee
GUARDIAN TECH INC
US·13 granted patents·1,538 citations·filing 1986–1990
Top patents by PatentIndex Score
13 records- 0193US4980671ARemote confinement system with timed tamper signal resetGUARDIAN TECH INC·Filed 1989·Granted Dec 25, 1990·167 cites·20 claims
- 0291US4996161ABreath alcohol testing systemGUARDIAN TECH INC·Filed 1987·Granted Feb 26, 1991·189 cites·27 claims
- 0391US4843377ARemote confinement systemGUARDIAN TECH INC·Filed 1987·Granted Jun 27, 1989·271 cites·216 claims
- 0489US4912458ASobriety interlock with service reminderGUARDIAN TECH INC·Filed 1988·Granted Mar 27, 1990·68 cites·7 claims
- 0587US4916435ARemote confinement monitoring station and system incorporating sameGUARDIAN TECH INC·Filed 1988·Granted Apr 10, 1990·192 cites·63 claims
- 0687US4914038AApparatus and method for avoiding circumvention of an identity confirming breath testerGUARDIAN TECH INC·Filed 1988·Granted Apr 3, 1990·78 cites·17 claims
- 0785US4999613ARemote confinement systemGUARDIAN TECH INC·Filed 1989·Granted Mar 12, 1991·215 cites·43 claims
- 0884US4901058ASobriety interlock with bypass detectionGUARDIAN TECH INC·Filed 1988·Granted Feb 13, 1990·53 cites·38 claims
- 0979US4902628AApparatus and method to deter circumvention of a breath sobriety testGUARDIAN TECH INC·Filed 1988·Granted Feb 20, 1990·74 cites·20 claims
- 1076USD304232SBreath sample receiving mouthpieceGUARDIAN TECH INC·Filed 1987·Granted Oct 24, 1989·16 cites·1 claims
- 1175US4738333ASobriety interlock with unsupervised confirmation of operator identityGUARDIAN TECH INC·Filed 1986·Granted Apr 19, 1988·135 cites·64 claims
- 1253US5117222ATamper indicating transmitterGUARDIAN TECH INC·Filed 1990·Granted May 26, 1992·51 cites·21 claims
- 1346US4900514ABreath analyzer mouthpiece systemGUARDIAN TECH INC·Filed 1987·Granted Feb 13, 1990·29 cites·17 claims
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