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USPTO Patent Rankings Data through Dec 31, 2025
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Glenn E. Mitchell — 1 Patent

EHEnvirotest Systems Holdings: 1 patents #15 of 33Top 50%
Tucson, AZ: #3,413 of 6,004 inventorsTop 60%
Arizona: #18,529 of 32,909 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Glenn E. Mitchell has been granted 1 US patent while listed as an inventor at Envirotest Systems Holdings. All of these patents were granted in 1997. Glenn E. Mitchell ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Glenn E. Mitchell in Tucson, AZ, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5671158 Apparatus and method for effecting wireless discourse between computer and technician in testing motor vehicle emission control systems Thomas J. Fournier, Bruce R. Kohn, Samuel Lee 1997-09-23 $1,899,000