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USPTO Data Jan 1 1976 - Oct 13 2026
1 Patents
#904 in Sunnyvale, CA
#29,047 in California
#136,844 in US
Process Challenge Devices
Forward Citations = 9
3 inventors:
Sunnyvale, CA, United States of America
Process Challenge Devices
Trademarks = 1
Forward Citations = 9
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3 inventors (with patents filed for the assignee):
Harvey A Markinson (1 out of 2 patents)
Dennis Christensen (1 out of 1 patent)
R Daniel Webster (1 out of 4 patents)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Process Challenge Devices. Retrieved from https://idiyas.com/company/process-challenge-devices
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]