Inventor · disambiguated record
Richard W. Hartzell
Also filed as: HARTZELL RICHARD W
3 granted patents·165 citations·filing 1997–1999
78Inventor score
Files withMIDDLEBY MARSHALL INC3
Top patents by PatentIndex Score
3 records- 0188US5869812APressure regulator for steam ovenMIDDLEBY MARSHALL INC·Filed 1997·Granted Feb 9, 1999·69 cites·28 claims
- 0284US6107605APressure regulator for steam ovenMIDDLEBY MARSHALL INC·Filed 1998·Granted Aug 22, 2000·49 cites·12 claims
- 0371US6175100B1Pressure regulator for steam ovenMIDDLEBY MARSHALL INC·Filed 1999·Granted Jan 16, 2001·47 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →