Douglas Edward DeVries — 22 Patents at Consumer Safety Technology

Douglas Edward DeVries has been granted 22 US patents while listed as an inventor at Consumer Safety Technology. The first was granted in 1995 and the most recent in June 2025. Douglas Edward DeVries ranks #189,202 of 4,157,543 US inventors in our database (top 4.6%). Patent records list Douglas Edward DeVries in Johnston, IA, US.

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #	Title	Co-Inventors	Date
12339263	Detection device transfer system	Scott Ruland	2025-06-24
12241879	Reference gas management in a breath alcohol calibration station	Scott Ruland	2025-03-04
12203925	Dual sensor types in intoxicant detection	Scott Ruland	2025-01-21
12054044	Networked intoxication vehicle immobilization	Timothy J. McGrath	2024-08-06
11971395	Secure data handling in a breath alcohol calibration station	Scott Ruland	2024-04-30
11789009	Dual sensor types in breath alcohol detection	Scott Ruland	2023-10-17
11415564	Secure data handling in a breath alcohol calibration station	Scott Ruland	2022-08-16
11338675	Networked intoxication vehicle immobilization	Timothy J. McGrath	2022-05-24
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
10877008	Reference gas management in a breath alcohol calibration station	Scott Ruland	2020-12-29
10877023	Dual sensor types in breath alcohol detection	Scott Ruland	2020-12-29
10663440	Secure data handling in a breath alcohol calibration station	Scott Ruland	2020-05-26
10604011	Networked intoxication vehicle immobilization	Timothy J. McGrath	2020-03-31
10596903	Networked intoxication vehicle immobilization	Timothy J. McGrath	2020-03-24
10040349	Networked intoxication vehicle immobilization	Timothy J. McGrath	2018-08-07
8957771	Apparatus, system, and method for implementing and monitoring breath alcohol testing programs, usually from a fixed point location, such as a home	David L. Arringdale, Michael W. Walter	2015-02-17
7934577	Ignition interlock breathalyzer	Michael W. Walter	2011-05-03
6871755	Ticket counting dispenser	Trevor E. Meyer, Kevin A. Jankowski, Daniel J. Fahrion, Scott A. Bottorf	2005-03-29
5612710	Real time low cost, large scale array 65K color display using lamps	Thomas C. Christensen, Jack L. Carter, Alan Stimson Foster, Jacques Y. Foster, William G. Phelps +3 more	1997-03-18
5426415	Breath analyzer for use in automobile ignition locking systems	Timothy J. Prachar, Michael W. Walter, Howard V. Block	1995-06-20

Douglas Edward DeVries — 22 Patents

Issued Patents All Time

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