Individual holder
HEFLEY CARL D
2 granted patents·1 pending application·39 citations·filing 1993–2007
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0178US7270092B2Variable displacement/compression engineHEFLEY CARL D·Filed 2006·Granted Sep 18, 2007·12 cites·14 claims
- 0266US5335632AVariable compression internal combustion engineHEFLEY CARL D·Filed 1993·Granted Aug 9, 1994·27 cites·9 claims
- 0340US2007245992A1Variable Displacement/Compression EngineHEFLEY CARL D·Filed 2007·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →