Assignee
CHAO WEN KUEI
3 granted patents·3 citations·filing 1977–1993
Technology mixB43K3
Top patents by PatentIndex Score
3 records- 0121US4251163AKnock-out type automatic pencilCHAO WEN KUEI·Filed 1979·Granted Feb 17, 1981·1 cites·4 claims
- 0220US5340224APush-type writing instrumentCHAO WEN KUEI·Filed 1993·Granted Aug 23, 1994·1 cites·1 claims
- 0320US4153379AKnock-out type automatic pencilCHAO WEN KUEI·Filed 1977·Granted May 8, 1979·1 cites·17 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →