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For the Inventor, By the Inventor

St. Louis, MO, United States of America

Intoximeters, Inc.


USPTO Granted Patents = 10



Trademarks = 13

Forward Citations = 108

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19 inventors (with patents filed for the assignee):

goldMedal Glenn C Forrester (4 out of 7 patents)

silverMedal M Rankine Forrester (3 out of 3 patents)

bronzeMedal James Roswell Braig (2 out of 106 patents)

4.  Daniel S Goldberger (2 out of 61 patents)

5.  David J Bayer (2 out of 2 patents)

6.  Roger Herrera (2 out of 2 patents)

7.  Roger D Allen (2 out of 4 patents)

8.  John Mitchell (1 out of 4 patents)

9.  Keith Lueck (1 out of 6 patents)

10.  Gary L Sibley (1 out of 1 patent)

11.  Steven J Nagel (1 out of 1 patent)

12.  G Daniel Chow (1 out of 1 patent)

13.  Karl P Wolf (1 out of 3 patents)

14.  Macquorn R Forrester (1 out of 1 patent)

15.  Joe E Fodor, Sr (1 out of 2 patents)


10 patents:

1. 7855081 - Methods of detecting RF interference in breath ethanol testing (2010-12-21),
2. 7855027 - Methods and apparatus for breath alcohol testing (2010-12-21),
3. 7749169 - Handheld breath tester housing and mouthpiece (2010-07-06),
4. 7122154 - Apparatus for testing breath alcohol with discrimination between alveolar and upper respiratory tract alcohol (2006-10-17),
5. 6557592 - Bottle valve (2003-05-06),
6. 5400637 - System and method of checking calibration of breath alcohol measuring (1995-03-28),
7. 5393495 - Method and apparatus for testing gases, particularly breath alcohol (1995-02-28),
8. 5376555 - Method for testing breath alcohol with discrimination between alveolar (1994-12-27),
9. 5048321 - Method of discriminating breath contaminants and apparatus therefor (1991-09-17),
10. 4744953 - Breath flow indicator (1988-05-17),
Intoximeters, Inc. is a leading provider of breath alcohol testing devices and services. With over 70 years of experience in the industry, Intoximeters offers a wide range of products for law enforcement, workplace testing, and personal use. Their innovative technology and commitment to quality have made them a trusted partner for organizations around the world.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

10 Patents

#173 in St. Louis, MO

#397 in Missouri

#28,938 in US

#54,238 in the World

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St. Louis, MO, United States of America

Intoximeters, Inc.

Forward Citations = 108

19 inventors:

goldMedal Glenn C Forrester (4 out of 7 patents)

silverMedal M Rankine Forrester (3 out of 3 patents)

bronzeMedal James Roswell Braig (2 out of 106 patents)

4.  Daniel S Goldberger (2 out of 61 patents)

5.  David J Bayer (2 out of 2 patents)

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