23 Utility Patents
#437 in Shizuoka
#29,905 in Japan
#138,677 in the World
Forward Citations = 92
Company Filing History:
N.e. Chemcat Corporation

Heesung Catalysts Corporation
4. 1 out of 12
Denki Kogyo Company, Limited
5. 1 out of 1
Heesung Cataysts Corporation
where one patent can have more than one assignee
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