Individual holder
ANDREEN JOHN F
3 granted patents·33 citations·filing 1975–1983
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0170US4516539AInternal combustion engineANDREEN JOHN F·Filed 1983·Granted May 14, 1985·25 cites·22 claims
- 0237US3999523AInternal combustion engineANDREEN JOHN F·Filed 1975·Granted Dec 28, 1976·6 cites·13 claims
- 0326US4121480AInternal combustion engine and transmission couplingANDREEN JOHN F·Filed 1976·Granted Oct 24, 1978·2 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →