Inventor · disambiguated record
Michael L. Sienkowski
Also filed as: SIENKOWSKI MICHAEL L
11 granted patents·1 pending application·120 citations·filing 1991–2017
90Inventor score
Top patents by PatentIndex Score
12 records- 0193US9284460B2Metal pretreatment composition containing zirconium, copper, and metal chelating agents and related coatings on metal substratesHENKEL AG & CO KGAA·Filed 2013·Granted Mar 15, 2016·8 cites·31 claims
- 0292US9580813B2Metal pretreatment composition containing zirconium, copper, and metal chelating agents and related coatings on metal substratesHENKEL AG & CO KGAA·Filed 2016·Granted Feb 28, 2017·3 cites·15 claims
- 0368US10094026B2Metal pretreatment composition containing zirconium, copper, and metal chelating agents and related coatings on metal substratesHENKEL AG & CO KGAA·Filed 2017·Granted Oct 9, 2018·0 cites·26 claims
- 0468US6368426B1Zinc phosphate conversion coating and processHENKEL CORP·Filed 2000·Granted Apr 9, 2002·9 cites·14 claims
- 0566US6620263B1Zinc phosphating process and composition with reduced pollution potentialHENKEL KGAA·Filed 2000·Granted Sep 16, 2003·9 cites·30 claims
- 0666US5261973AZinc phosphate conversion coating and processHENKEL CORP·Filed 1991·Granted Nov 16, 1993·29 cites·2 claims
- 0759US6720032B1Pretreatment before painting of composite metal structures containing aluminum portionsHENKEL KGAA·Filed 1998·Granted Apr 13, 2004·25 cites·22 claims
- 0856US5885373AChromium free, low organic content post-rinse for conversion coatingsHENKEL CORP·Filed 1997·Granted Mar 23, 1999·20 cites·20 claims
- 0948US6019858AZinc phosphate conversion coating and processHENKEL CORP·Filed 1998·Granted Feb 1, 2000·12 cites·10 claims
- 1041US9163315B2Pretreatment process for aluminum and high etch cleaner used thereinKAPIC EDIS·Filed 2012·Granted Oct 20, 2015·0 cites·10 claims
- 1140US2005145303A1Multiple step conversion coating processFiled 2003·Application pending·0 cites
- 1233US5900073ASludge reducing zinc phosphating process and compositionHENKEL CORP·Filed 1996·Granted May 4, 1999·5 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →