Individual holder
ZETTNER MICHAEL L
DE·3 granted patents·30 citations·filing 1988–1991
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0146US5131840ACombustion device for combustion of two fluid componentsZETTNER MICHAEL L·Filed 1988·Granted Jul 21, 1992·12 cites·7 claims
- 0246US4890990ARotary internal combustion engine with mutually interengaging rotatable elementsZETTNER MICHAEL L·Filed 1988·Granted Jan 2, 1990·12 cites·14 claims
- 0334US5339779APiston connection for a reciprocating piston engineZETTNER MICHAEL L·Filed 1991·Granted Aug 23, 1994·6 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →