Assignee
PENN CORP
US·4 granted patents·108 citations·filing 1975–1978
Top patents by PatentIndex Score
4 records- 0185US3979934ASeparable key holderPENN CORP·Filed 1975·Granted Sep 14, 1976·79 cites·6 claims
- 0254US4161374ATwist retractable writing implementPENN CORP·Filed 1977·Granted Jul 17, 1979·16 cites·5 claims
- 0347US4217712AConical penPENN CORP·Filed 1978·Granted Aug 19, 1980·12 cites·8 claims
- 0428US4257713AConical penPENN CORP·Filed 1978·Granted Mar 24, 1981·1 cites·7 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →