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USPTO Data Jan 1 1976 - Oct 20 2026
1 Patents
#6,102 in Tokyo
#15,759 in Japan
Dic Covestro Ppolymer Ltd
Forward Citations = 0
4 inventors:
Dic Covestro Ppolymer Ltd
% Expired Patents = 100.0
Forward Citations = 0
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4 inventors (with patents filed for the assignee):
Katsunobu Mochizuki (1 out of 20 patents)
Takashi Akutagawa (1 out of 1 patent)
Naoki Shirakawa (1 out of 1 patent)
4. Hiroyuki Nagasawa (1 out of 60 patents)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dic Covestro Ppolymer Ltd. Retrieved from https://idiyas.com/company/dic-covestro-ppolymer
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]