Inventor · disambiguated record
Darryl L. Ruark
Also filed as: RUARK DARRYL L
5 granted patents·216 citations·filing 1987–1998
84Inventor score
Top patents by PatentIndex Score
5 records- 0193US6036480ACombustion burner for a water heaterAOS HOLDING CO·Filed 1998·Granted Mar 14, 2000·113 cites·48 claims
- 0278US4872443AWater heater with power vent access doorSMITH CORP A O·Filed 1989·Granted Oct 10, 1989·34 cites·22 claims
- 0367US5735237AHot water storage heaterAOS HOLDING CO·Filed 1996·Granted Apr 7, 1998·29 cites·20 claims
- 0464US4777933AAccess door construction for a water heaterSMITH CORP A O·Filed 1987·Granted Oct 18, 1988·21 cites·14 claims
- 0556US5299280AWipe entry arrangement for components in a protective dam area of a foam insulated electric water heater tankAOS HOLDING CO·Filed 1992·Granted Mar 29, 1994·19 cites·11 claims
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