Inventor · disambiguated record
Duane H. Walker
Also filed as: QUARDERER DARRELL W · WALKER DUANE H · WALKER DUANE HUBERT
3 granted patents·214 citations·filing 1977–1978
77Inventor score
Files withNAT PRESTO IND3
Top patents by PatentIndex Score
3 records- 0192US4162741APressure cookerNAT PRESTO IND·Filed 1978·Granted Jul 31, 1979·120 cites·27 claims
- 0284US4143787ACaptivated over-pressure relief air vent assemblyNAT PRESTO IND·Filed 1978·Granted Mar 13, 1979·60 cites·15 claims
- 0373US4103801APressure cooker with manually-operated cover interlockNAT PRESTO IND·Filed 1977·Granted Aug 1, 1978·34 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →