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Home › 2021 › Consumer Safety Technology › Douglas Edward DeVries

Douglas Edward DeVries — 3 Patents in 2021

CTConsumer Safety Technology: 3 patents #1 of 3Top 35%

Johnston, IA: #8 of 44 inventorsTop 20%

Iowa: #138 of 1,785 inventorsTop 8%

Overall (2021): #84,998 of 548,734Top 20%

3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
11047840	Reference gas management in a breath alcohol calibration station	Scott Ruland	2021-06-29
10948468	Fault-tolerant breath alcohol calibration station and method	Scott Ruland	2021-03-16
10919389	Networked vehicle immobilization	Timothy J. McGrath	2021-02-16

Douglas Edward DeVries — 3 Patents in 2021

Issued Patents 2021

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