Inventor · disambiguated record
William E. Fristad
Also filed as: FRISTAD WILLIAM · FRISTAD WILLIAM E
28 granted patents·7 pending applications·302 citations·filing 1990–2014
97Inventor score
Top patents by PatentIndex Score
35 records- 0188US8715403B2Multi-stage pre-treatment method for metal components having zinc and iron surfacesBROUWER JAN-WILLEM·Filed 2012·Granted May 6, 2014·8 cites·24 claims
- 0286US6833398B2Epoxy resin-based autodeposition coatingsHENKEL KGAA·Filed 2002·Granted Dec 21, 2004·28 cites·17 claims
- 0384US5494649AProcess for removing heavy metals from paint chipsCOGNIS INC·Filed 1992·Granted Feb 27, 1996·35 cites·1 claims
- 0483US9228088B2Composition for the alkaline passivation of zinc surfacesBROUWER JAN-WILLEM·Filed 2012·Granted Jan 5, 2016·3 cites·20 claims
- 0581US7887938B2Coating compositionHENKEL AG & CO KGAA·Filed 2007·Granted Feb 15, 2011·7 cites·21 claims
- 0681US7063735B2Coating compositionHENKEL KGAA·Filed 2003·Granted Jun 20, 2006·23 cites·26 claims
- 0781US6645633B2Autodeposition compositionsHENKEL CORP·Filed 2001·Granted Nov 11, 2003·21 cites·22 claims
- 0881US6613387B2Protective reaction rinse for autodeposition coatingsHENKEL CORP·Filed 2001·Granted Sep 2, 2003·17 cites·42 claims
- 0975US5660806AProcess for removing lead from sandblasting wastes containing paint chipsHENKEL CORP·Filed 1995·Granted Aug 26, 1997·20 cites·7 claims
- 1074US9718092B2Off-white and gray autodeposition coatingsHENKEL AG & CO KGAA·Filed 2014·Granted Aug 1, 2017·1 cites·22 claims
- 1171US6805768B2Method of forming rubber-metal compositesHENKEL KGAA·Filed 2001·Granted Oct 19, 2004·22 cites·18 claims
- 1271US6706123B2Phosphate conversion coating concentrateHENKEL KGAA·Filed 2001·Granted Mar 16, 2004·12 cites·20 claims
- 1369US6410092B1Autodeposition post-bath rinse processHENKEL CORP·Filed 2000·Granted Jun 25, 2002·6 cites·8 claims
- 1468US9228109B2Glossy improved appearance auto-deposition coating, and methods of applying sameHENKEL AG & CO KGAA·Filed 2013·Granted Jan 5, 2016·1 cites·27 claims
- 1568US8871309B2Off-white and gray autodeposition coatingsABU-SHANAB OMAR LUFTI·Filed 2012·Granted Oct 28, 2014·1 cites·23 claims
- 1667US7204890B2Process for removing fine particulate soil from hard surfacesHENKEL KGAA·Filed 2001·Granted Apr 17, 2007·8 cites·10 claims
- 1766US5785935AProcess for removing mercury from soilFiled 1994·Granted Jul 28, 1998·17 cites·9 claims
- 1866US5744107AProcess for removing heavy metals from soilHENKEL CORP·Filed 1994·Granted Apr 28, 1998·15 cites·22 claims
- 1965US6406748B2Prevention of particle redeposition onto organic surfacesHENKEL CORP·Filed 2001·Granted Jun 18, 2002·3 cites·25 claims
- 2059US8313570B2Off-white and gray autodeposition coatingsABU-SHANAB OMAR L·Filed 2007·Granted Nov 20, 2012·1 cites·32 claims
- 2159US7332021B2Coating compositionHENKEL KGAA·Filed 2003·Granted Feb 19, 2008·3 cites·32 claims
- 2258US2009236288A1Method for separating multivalent metal ionsHENKEL KGAA·Filed 2009·Application pending·0 cites
- 2357US5505925AProcess for removing heavy metals from soilCOGNIS INC·Filed 1994·Granted Apr 9, 1996·11 cites·26 claims
- 2454US5607060AMethod and apparatus for removing metal contamination from soilHENKEL CORP·Filed 1995·Granted Mar 4, 1997·16 cites·15 claims
- 2554US5106541AManganese compound catalyzed oligomerization reactions and products thereofHENKEL RESEARCH CORP·Filed 1990·Granted Apr 21, 1992·6 cites·45 claims
- 2649US2008160199A1High peroxide autodeposition bathNADUPPARAMBIL SEKHARAN MANESH·Filed 2007·Application pending·0 cites
- 2748US2008131728A1Acidic zincating solutionNADUPPARAMBIL SEKHARAN MANESH·Filed 2007·Application pending·0 cites
- 2847US2006094637A1Deruster composition and methodHENKEL KGAA·Filed 2005·Application pending·0 cites
- 2945US2003082391A1Multilayer coatings for metal substratesHENKEL CORP·Filed 2002·Application pending·0 cites
- 3044US2004050794A1Method for separating multivalent metal ionsFiled 2001·Application pending·0 cites
- 3143US5196544ACyclic oligoiminoethersHENKEL KGAA·Filed 1992·Granted Mar 23, 1993·2 cites·19 claims
- 3241US5466426AMethod and apparatus for removing metal contamination from soilCOGNIS INC·Filed 1993·Granted Nov 14, 1995·8 cites·22 claims
- 3341US2006241005A1Oil-splitting alkaline cleaner for metal partsSIEBERT ELIZABETH J·Filed 2006·Application pending·0 cites
- 3439US7579088B2Increasing and maintaining the hydrophilic nature of an oxidized plastic surfaceHENKEL KGAA·Filed 2004·Granted Aug 25, 2009·0 cites·29 claims
- 3539US5786030ASpotting resistant gloss enhancement of autodeposition coatingHENKEL CORP·Filed 1996·Granted Jul 28, 1998·7 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when William E. Fristad files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →