Inventor · disambiguated record
Ralph H. Larson
Also filed as: LARSON RALPH H
5 granted patents·2 pending applications·87 citations·filing 1980–2004
82Inventor score
Top patents by PatentIndex Score
7 records- 0180US6085788APlastic coated valve rotor and a method of manufacturingECOWATER SYSTEMS INC·Filed 1999·Granted Jul 11, 2000·35 cites·11 claims
- 0261US4317475ALiquid filling and level sensing apparatusNORDSON CORP·Filed 1980·Granted Mar 2, 1982·21 cites·10 claims
- 0348US5867900APlastic coated valve rotor and a method of manufacturingECOWATER SYSTEMS INC·Filed 1997·Granted Feb 9, 1999·12 cites·7 claims
- 0444US2004144702A1Controller for salt dosage for a water softener and method of regenerating a water softenerECOWATER SYSTEMS INC·Filed 2004·Application pending·0 cites
- 0542US6284132B1Brine fill apparatus for water softenerECOWATER SYSTEMS INC·Filed 1998·Granted Sep 4, 2001·10 cites·8 claims
- 0638US2001023841A1Controller for salt dosage for a water softener and method of regenerating a water softenerFiled 2001·Application pending·0 cites
- 0733US6210646B1Permanganate feeder for iron filterECOWATER SYSTEMS INC·Filed 1998·Granted Apr 3, 2001·9 cites·25 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →