John A Helmsderfer (3 out of 54 patents)
David Memke (3 out of 6 patents)
Company Badge
USPTO Data Jan 1 1976 - Nov 3 2026
3 Patents
#269 in Cincinnati, OH
#2,863 in Ohio
#73,976 in US
Helmsderfer; John a.
Forward Citations = 44
2 inventors:
Cincinnati, OH, United States of America
Helmsderfer; John a.
Calculating rank
Forward Citations = 44
Loading Chart...
Loading Chart...
2 inventors (with patents filed for the assignee):
3 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Helmsderfer; John a.. Retrieved from https://idiyas.com/company/helmsderfer-john-a
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]