Company Badge
USPTO Data Jan 1 1976 - Oct 20 2026
3 Patents
#14 in Marshall, TX
#4,794 in Texas
#73,904 in US
S4, Inc.
Forward Citations = 12
9 inventors:
Marshall, TX, United States of America
S4, Inc.
% Expired Patents = 100.0
Trademarks = 7
Forward Citations = 12
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9 inventors (with patents filed for the assignee):
Takashi Tsunehiro (2 out of 61 patents)
Kunihiro Katayama (2 out of 107 patents)
Hajime Yamagami (2 out of 28 patents)
4. Kouichi Terada (2 out of 19 patents)
5. Kenichi Kaki (2 out of 38 patents)
6. Takeshi Furuno (2 out of 29 patents)
7. Yoshihiro Hayashi (2 out of 21 patents)
8. Hitoshi Miwa (1 out of 64 patents)
9. Hiroaki Kotani (1 out of 46 patents)
3 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: S4, Inc.. Retrieved from https://idiyas.com/company/s4
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]