Saint Paul, MN, United States of America

Environmental Research Corporation

Calculating rank

USPTO Granted Patents = 1

Forward Citations = 46

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4 inventors (with patents filed for the assignee):

Dale A Lundgren (1 out of 2 patents)

Perry B Lonnes (1 out of 1 patent)

Carl M Peterson (1 out of 1 patent)

4. Laverne W Rees (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 3969479 - Odor control method (1976-07-13),

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USPTO Data Jan 1 1976 - Oct 27 2026

1 Patents

#355 in Saint Paul, MN

#3,567 in Minnesota

#136,971 in US

Saint Paul, MN, United States of America

Environmental Research Corporation

Forward Citations = 46

4 inventors:

Dale A Lundgren (1 out of 2 patents)

Perry B Lonnes (1 out of 1 patent)

Carl M Peterson (1 out of 1 patent)

4. Laverne W Rees (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Environmental Research Corporation. Retrieved from https://idiyas.com/company/environmental-research

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]