% Expired Patents = 100.0

Forward Citations = 3

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2 inventors (with patents filed for the assignee):

Cecil T Massie (1 out of 6 patents)

Sammy Mayfield Pierce (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 6667385 - Method of producing aminium lactate salt as a feedstock for dilactic acid or dimer production (2003-12-23),

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USPTO Data Jan 1 1976 - Oct 13 2026

1 Patents

#8 in Keokuk, IA

#898 in Iowa

#136,844 in US

Keokuk, IA, United States of America

Energenetics International, Inc.

Forward Citations = 3

2 inventors:

Cecil T Massie (1 out of 6 patents)

Sammy Mayfield Pierce (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Energenetics International, Inc.. Retrieved from https://idiyas.com/company/energenetics-international

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]