Assignee
CLARK WALLACE
9 granted patents·171 citations·filing 1974–1991
Top patents by PatentIndex Score
9 records- 0191US4187918ADown-hole earth drilling motor capable of free circulationCLARK WALLACE·Filed 1978·Granted Feb 12, 1980·42 cites·12 claims
- 0276US3932072AMoineau pump with rotating outer memberCLARK WALLACE·Filed 1974·Granted Jan 13, 1976·25 cites·4 claims
- 0371US5133016AHearing aid with replaceable drying agentCLARK WALLACE·Filed 1991·Granted Jul 21, 1992·49 cites·8 claims
- 0465US3951097AHydraulic motor or pumpCLARK WALLACE·Filed 1975·Granted Apr 20, 1976·10 cites·23 claims
- 0562US4059165AVersatile fluid motor and pumpCLARK WALLACE·Filed 1976·Granted Nov 22, 1977·24 cites·37 claims
- 0639US4221552AHydraulic motor with variable speedCLARK WALLACE·Filed 1978·Granted Sep 9, 1980·6 cites·8 claims
- 0738US4912759ADevice for selectively depressing a telephone switchCLARK WALLACE·Filed 1989·Granted Mar 27, 1990·5 cites·17 claims
- 0837US3965870AMethod of operating an internal combustion engine with solvent refined coal as a fuelCLARK WALLACE·Filed 1975·Granted Jun 29, 1976·5 cites·5 claims
- 0933US4051910ATwo way earth boring fluid motorCLARK WALLACE·Filed 1975·Granted Oct 4, 1977·5 cites·9 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →