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For the Inventor, By the Inventor

St. Louis, MO, United States of America

Intoximeters, Inc.

Calculating rank
USPTO Granted Patents = 10


Trademarks = 13

Forward Citations = 109

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15 inventors (with patents filed for the assignee):

goldMedal Glenn C Forrester (4 out of 8 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),
Company Overview
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 synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 3 2026

10 Patents

#192 in St. Louis, MO

#426 in Missouri

#29,922 in US

#56,169 in the World

St. Louis, MO (US)
St. Louis, MO, United States of America

Intoximeters, Inc.

Forward Citations = 109

15 inventors:

goldMedal Glenn C Forrester (4 out of 8 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Intoximeters, Inc.. Retrieved from https://idiyas.com/company/intoximeters

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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