For the Inventor, By the Inventor

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St. Louis, MO, United States of America

Intoximeters, Inc.

USPTO Granted Patents = 10

EPO Patents = 2

Trademarks = 13

Forward Citations = 109

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15 inventors (with patents filed for the assignee):

Glenn C Forrester (4 out of 8 patents)

M Rankine Forrester (3 out of 3 patents)

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: Sort by Forward Citations

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 manufacturer specializing in breath alcohol testing devices and related technologies. Based in St. Louis, Missouri, the company focuses on developing reliable and accurate solutions for law enforcement, healthcare, and workplace safety applications. Their product range includes handheld breath analyzers and evidential testing equipment, which are designed to meet rigorous standards and support various regulatory requirements. Intoximeters is committed to advancing alcohol testing technology to enhance public safety and compliance.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

10 Patents

#192 in St. Louis, MO

#424 in Missouri

#29,839 in US

#55,986 in the World

St. Louis, MO, United States of America

Intoximeters, Inc.

Forward Citations = 109

15 inventors:

Glenn C Forrester (4 out of 8 patents)

M Rankine Forrester (3 out of 3 patents)

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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