Inventor · disambiguated record
David M. Butler
Also filed as: BUTLER DAVID M · BUTLER DAVID MCMAHON · BUTLER DAVID R
7 granted patents·3 pending applications·113 citations·filing 1977–2012
85Inventor score
Top patents by PatentIndex Score
10 records- 0180US5167145AMeasurement of blood coagulation time using infrared electromagnetic energyBUTLER DAVID M·Filed 1990·Granted Dec 1, 1992·60 cites·13 claims
- 0265US4075034ASolar converterBUTLER DAVID M·Filed 1977·Granted Feb 21, 1978·29 cites·12 claims
- 0359US8580098B1Electrically enhanced cellulose filtration systemMUNSON GERALD L·Filed 2012·Granted Nov 12, 2013·1 cites·20 claims
- 0457US6917943B2Sheaf data modelLIMIT POINT SYSTEMS INC·Filed 2001·Granted Jul 12, 2005·15 cites·88 claims
- 0553US8293091B2Electrically enhanced cellulose filtration systemMUNSON GERALD L·Filed 2009·Granted Oct 23, 2012·1 cites·20 claims
- 0650US7409849B2Oil filtration system for plural phase power equipment tanksFILMAX INC·Filed 2004·Granted Aug 12, 2008·4 cites·5 claims
- 0747US7865526B2Sheaf data modelLIMIT POINT SYSTEMS INC·Filed 2005·Granted Jan 4, 2011·3 cites·10 claims
- 0847US2011005995A1Fluid filter and method of constructionFILMAX INC·Filed 2009·Application pending·0 cites
- 0947US2008295904A1Oil filtration system for plural phase power equipment tanksFILMAX INC·Filed 2008·Application pending·0 cites
- 1039US2008093297A1Filtration SystemGOCK KENNETH W·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →