Forward Citations = 318

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4 inventors (with patents filed for the assignee):

Robert M Hunter (9 out of 29 patents)

Frank M Stewart (8 out of 30 patents)

Tamara Darsow (2 out of 3 patents)

4. Macgregor L Fogelsong (1 out of 2 patents)

9 patents: Sort by Forward Citations

1. 5942117 - Anaerobic biodegradation of unsaturated, saturated, aromatic and (1999-08-24),

2. 5914441 - Biocatalyzed anaerobic oxidation of metal sulfides for recovery of metal (1999-06-22),

3. 5811255 - Apparatus and method for anaerobic respirometry (1998-09-22),

4. 5672194 - Method and apparatus for extracting precious metals from their ores and (1997-09-30),

5. 5485518 - Electronic media program recognition and choice (1996-01-16),

6. 5423226 - Flow measurement system (1995-06-13),

7. 5406828 - Method and apparatus for pressure and level transmission and sensing (1995-04-18),

8. 5351845 - Cognitive skill based child-resistant and tamper-evident closure (1994-10-04),

9. 5342769 - Microbial dehalogenation using methanosarcina (1994-08-30),

Company Overview

Yellowstone Environmental Science, Inc. is a leading environmental consulting firm specializing in environmental assessments, remediation, and compliance services. With over 20 years of experience, we provide expert solutions for a variety of industries to ensure environmental sustainability and regulatory compliance. Our team of highly qualified professionals works closely with clients to deliver innovative and cost-effective environmental solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

9 Patents

#15 in Bozeman, MT

#36 in Montana

#32,565 in US

Bozeman, MT, United States of America

Yellowstone Environmental Science, Inc.

Forward Citations = 318

4 inventors:

Robert M Hunter (9 out of 29 patents)

Frank M Stewart (8 out of 30 patents)

Tamara Darsow (2 out of 3 patents)

4. Macgregor L Fogelsong (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Yellowstone Environmental Science, Inc.. Retrieved from https://idiyas.com/company/yellowstone-environmental-science

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]