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USPTO Data Jan 1 1976 - Oct 20 2026
2 Patents
#1,543 in Houston, TX
#6,308 in Texas
#94,905 in US
Penreco
Forward Citations = 45
4 inventors:
Houston, TX, United States of America
Penreco
Calculating rank
CIPO Patents = 2
EPO Patents = 2
Trademarks = 1
Forward Citations = 45
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4 inventors (with patents filed for the assignee):
Richard L Johnson (1 out of 38 patents)
Wei Song (1 out of 10 patents)
S Gina Butuc (1 out of 1 patent)
4. David Elliott, Iii (1 out of 1 patent)
5. Steluta Gina Butuc (2 patents)
6. David S Morrison (9 patents)
7. Robert H Ray (2 patents)
8. Lin Lu (1 patent)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Penreco. Retrieved from https://idiyas.com/company/penreco
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]
2 patents (CIPO):
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]
2 patents (EPO):
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]