Richard A Sager (1 out of 2 patents)
John Papsdorf (1 out of 1 patent)
Company Badge
USPTO Data Jan 1 1976 - Oct 20 2026
2 Patents
#21 in Rochester, MI
#3,189 in Michigan
#94,905 in US
Ptl Engineering
Forward Citations = 21
2 inventors:
Rochester, MI, United States of America
Ptl Engineering
Forward Citations = 21
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2 inventors (with patents filed for the assignee):
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ptl Engineering. Retrieved from https://idiyas.com/company/ptl-engineering
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]
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]
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]