Fritz Seelhofer (2 out of 22 patents)
Wolfgang Zangerle (1 out of 3 patents)
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USPTO Data Jan 1 1976 - Oct 27 2026
2 Patents
#1 in Hagglingen
#3,078 in Switzerland
Riwisa Ag
Forward Citations = 12
2 inventors:
Riwisa Ag
Calculating rank
% Expired Patents = 50.0
EPO Patents = 1
Forward Citations = 12
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2 inventors (with patents filed for the assignee):
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Riwisa Ag. Retrieved from https://idiyas.com/company/riwisa-ag
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]
1 patent (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]