Envirotest Systems Corp.

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Tucson, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for effecting wireless discourse between compu...
- Patent number 5,671,158
- Issue date Sep 23, 1997
- Envirotest Systems Corp.
- Thomas J. Fournier
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Remote vehicle emission analyzer with light conveyance to detectors...
- Patent number 5,644,133
- Issue date Jul 1, 1997
- Envirotest Systems, Corp.
- John Didomenico
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for non-intrusive testing of a motor vehicle c...
- Patent number 5,465,614
- Issue date Nov 14, 1995
- Envirotest Systems Corp.
- Thomas J. Fournier
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Apparatus and method for non-intrusive testing of motor vehicle eva...
- Patent number 5,425,266
- Issue date Jun 20, 1995
- Envirotest Systems Corp.
- Thomas J. Fournier
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for capturing, storing, retrieving, and displa...
- Patent number 5,414,626
- Issue date May 9, 1995
- Envirotest Systems Corp.
- Rodney T. Boorse
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Remote sensor device for monitoring motor vehicle exhaust systems
- Patent number 5,371,367
- Issue date Dec 6, 1994
- Envirotest Systems Corp.
- John DiDomenico
- G01 - MEASURING TESTING