Donald W. Collier

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Remote confinement system
- Patent number 4,999,613
- Issue date Mar 12, 1991
- Guardian Technologies, Inc.
- Lon A. Williamson
- G07 - CHECKING-DEVICES
Information Patent Grant
Remote confinement system
- Patent number 4,843,377
- Issue date Jun 27, 1989
- Guardian Technologies, Inc.
- Kip L. Fuller
- G07 - CHECKING-DEVICES
Information Patent Grant
Sobriety interlock with unsupervised confirmation of operator identity
- Patent number 4,738,333
- Issue date Apr 19, 1988
- Guardian Technologies, Inc.
- Donald W. Collier
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Sobriety interlock with time-locked interlock mode
- Patent number 4,697,666
- Issue date Oct 6, 1987
- Guardian Interlock Systems, Inc.
- Donald W. Collier
- B60 - VEHICLES IN GENERAL
Information Patent Grant
BREATH TESTING SYSTEM
- Patent number 4,093,945
- Issue date Jun 6, 1978
- Donald W. Collier
- B60 - VEHICLES IN GENERAL