7 Utility Patents
#9,161 in Seoul
#31,910 in South Korea
#591,200 in the World
Forward Citations = 54
Company Filing History:

Gradco Japan Ltd.
Gradco Ltd.
4. 1 out of 831,952 patents
Other
5. 1 out of 23
Sindoricoh Co., Ltd.
where one patent can have more than one assignee
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