Individual holder
COFFMAN MELVIN C
3 granted patents·60 citations·filing 1975–1978
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0177USD261901SShaft for a marking instrumentCOFFMAN MELVIN C·Filed 1978·Granted Nov 17, 1981·17 cites·1 claims
- 0272US4149811AStyle handleCOFFMAN MELVIN C·Filed 1975·Granted Apr 17, 1979·38 cites·10 claims
- 0348USD252815SShaft for a marking instrumentCOFFMAN MELVIN C·Filed 1976·Granted Sep 4, 1979·5 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →