Inventor · disambiguated record
Werner Schwertfeger
Also filed as: SCHWERTFEGER WERNER
58 granted patents·12 pending applications·1,541 citations·filing 1981–2016
99Inventor score
Top patents by PatentIndex Score
70 records- 0198US7671112B2Method of making fluoropolymer dispersion3M INNOVATIVE PROPERTIES CO·Filed 2006·Granted Mar 2, 2010·86 cites·18 claims
- 0298US7018541B2Removal of fluorinated surfactants from waste water3M INNOVATIVE PROPERTIES CO·Filed 2005·Granted Mar 28, 2006·81 cites·10 claims
- 0398US6255536B1Fluorine containing vinyl ethersDYNEON LLC·Filed 1999·Granted Jul 3, 2001·203 cites·10 claims
- 0497US6794550B2Method of making an aqueous dispersion of fluoropolymers3M INNOVATIVE PROPERTIES CO·Filed 2001·Granted Sep 21, 2004·106 cites·17 claims
- 0596US7795332B2Method of removing fluorinated carboxylic acid from aqueous liquid3M INNOVATIVE PROPERTIES CO·Filed 2006·Granted Sep 14, 2010·22 cites·23 claims
- 0696US6833403B1Aqueous dispersions of fluoropolymers3M INNOVATIVE PROPERTIES CO·Filed 1999·Granted Dec 21, 2004·155 cites·14 claims
- 0796US6825250B2Process for reducing the amount of fluorinated surfactant in aqueous fluoropolymer dispersions3M INNOVATIVE PROPERTIES CO·Filed 2003·Granted Nov 30, 2004·82 cites·12 claims
- 0896US4987254AFluorinated carboxylic acid fluoridesHOECHST AG·Filed 1989·Granted Jan 22, 1991·61 cites·10 claims
- 0995US7754795B2Coating composition3M INNOVATIVE PROPERTIES CO·Filed 2006·Granted Jul 13, 2010·22 cites·23 claims
- 1095US6436244B1Process for the elution of fluorinated emulsifiersDYNEON GMBH·Filed 2000·Granted Aug 20, 2002·56 cites·13 claims
- 1194US7166198B2Treatment of fluorocarbon feedstocks3M INNOVATIVE PROPERTIES CO·Filed 2001·Granted Jan 23, 2007·90 cites·14 claims
- 1294US6642415B1Method for recovering fluorinated emulsifiers3M INNOVATIVE PROPERTIES CO·Filed 2000·Granted Nov 4, 2003·60 cites·6 claims
- 1393US7838608B2Fluorinated surfactants for making fluoropolymers3M INNOVATIVE PROPERTIES CO·Filed 2006·Granted Nov 23, 2010·12 cites·11 claims
- 1493US7074862B2Emulsifier free aqueous emulsion polymerization process for making fluoropolymers3M INNOVATIVE PROPERTIES CO·Filed 2002·Granted Jul 11, 2006·49 cites·19 claims
- 1593US6657013B2Imidate-containing fluoropolymer compositions3M INNOVATIVE PROPERTIES CO·Filed 2001·Granted Dec 2, 2003·43 cites·23 claims
- 1691US6703520B2Process of preparing halogenated esters3M INNOVATIVE PROPERTIES CO·Filed 2002·Granted Mar 9, 2004·45 cites·10 claims
- 1791US6255535B1Fluorine containing allylethers and higher homologsDYNEON LLC·Filed 1999·Granted Jul 3, 2001·47 cites·14 claims
- 1890US6803425B2Fluoropolymers having pendant imidate structures3M INNOVATIVE PROPERTIES CO·Filed 2002·Granted Oct 12, 2004·36 cites·26 claims
- 1989US7776946B2Aqueous emulsion polymerization of fluorinated monomers using a fluorinated surfactant3M INNOVATIVE PROPERTIES CO·Filed 2006·Granted Aug 17, 2010·11 cites·13 claims
- 2087US8476385B2Fluorinated ether compositions and methods of using the sameDAMS RUDOLF J·Filed 2008·Granted Jul 2, 2013·9 cites·20 claims
- 2187US7560517B2Fluoropolymer for making a fluoroelastomer3M INNOVATIVE PROPERTIES CO·Filed 2005·Granted Jul 14, 2009·9 cites·14 claims
- 2287US6482979B1Perfluorinated acid fluorides and preparation thereofDYNEON LLC·Filed 1999·Granted Nov 19, 2002·36 cites·22 claims
- 2386US4940814AReaction of hexafluoropropene oxide with fluorinated carboxylic acid fluoridesHOECHST AG·Filed 1988·Granted Jul 10, 1990·21 cites·15 claims
- 2485US8222322B2Method of making fluoropolymer dispersionHINTZER KLAUS·Filed 2010·Granted Jul 17, 2012·3 cites·19 claims
- 2585US6943228B2Ultraclean fluoroelastomer suitable for use in the manufacturing of electronic components3M INNOVATIVE PROPERTIES CO·Filed 2003·Granted Sep 13, 2005·23 cites·9 claims
- 2682US7060772B2Fluoropolymers from tetrafluoroethylene and perfluoro(alkoxyalkyl vinyl) ether3M INNOVATIVE PROPERTIES CO·Filed 2001·Granted Jun 13, 2006·19 cites·7 claims
- 2781US7358296B2Aqueous dispersions of fluoropolymers3M INNOVATIVE PROPERTIES CO·Filed 2004·Granted Apr 15, 2008·14 cites·12 claims
- 2879US8633288B2Fluorinated ether compounds and methods of using the sameDAMS RUDOLF J·Filed 2009·Granted Jan 21, 2014·3 cites·16 claims
- 2978US8404790B2Aqueous emulsion polymerization process for producing fluoropolymersHINTZER KLAUS·Filed 2012·Granted Mar 26, 2013·2 cites·16 claims
- 3077US9828320B2Methods of making halogenated fluorinated ether-containing compounds3M INNOVATIVE PROPERTIES CO·Filed 2015·Granted Nov 28, 2017·1 cites·20 claims
- 3175US8119750B2Explosion taming surfactants for the production of perfluoropolymersHINTZER KLAUS·Filed 2006·Granted Feb 21, 2012·3 cites·15 claims
- 3274US7250540B2Process for manufacturing fluoroolefins3M INNOVATIVE PROPERTIES CO·Filed 2005·Granted Jul 31, 2007·2 cites·12 claims
- 3374US6919015B2Process for manufacturing fluoroolefins3M INNOVATIVE PROPERTIES CO·Filed 2002·Granted Jul 19, 2005·9 cites·16 claims
- 3474US4808651ASolutions of fluoropolymers, and their useHOECHST AG·Filed 1987·Granted Feb 28, 1989·34 cites·25 claims
- 3573US7754914B2Method of recovering fluorinated acid surfactants from adsorbent particles loaded therewith3M INNOVATIVE PROPERTIES CO·Filed 2005·Granted Jul 13, 2010·2 cites·9 claims
- 3672US7807726B2Recovery of fluorinated surfactants from a basic anion exchange resin having quaternary ammonium groups3M INNOVATIVE PROPERTIES CO·Filed 2006·Granted Oct 5, 2010·3 cites·8 claims
- 3772US4623491AProcess for the preparation of halogenated aliphatic carboxylic acid fluoridesHOECHST AG·Filed 1985·Granted Nov 18, 1986·10 cites·14 claims
- 3869US7094839B2Process for making a fluoroelastomer3M INNOVATIVE PROPERTIES CO·Filed 2003·Granted Aug 22, 2006·8 cites·18 claims
- 3969US4933388ASolutions of copolymers of the tetrafluoroethylene/ethylene typeHOECHST AG·Filed 1988·Granted Jun 12, 1990·20 cites·6 claims
- 4064US2017037166A1Fluorinated surfactants for making fluoropolymers3M INNOVATIVE PROPERTIES CO·Filed 2016·Application pending·0 cites
- 4163US4524031AFluorosulfatoperfluorocarbonyl compoundsHOECHST AG·Filed 1983·Granted Jun 18, 1985·5 cites·3 claims
- 4261US8614265B2Method of making fluoropolymer dispersionHINTZER KLAUS·Filed 2012·Granted Dec 24, 2013·0 cites·20 claims
- 4360US4874557AProcess for the preparation of perfluorinated carbonyl fluoridesHOECHST AG·Filed 1988·Granted Oct 17, 1989·6 cites·8 claims
- 4457US2011232530A1Fluorinated ether urethanes and methods of using the sameDAMS RUDOLF J·Filed 2009·Application pending·0 cites
- 4556US2011034604A1Fluorinated surfactants for making fluoropolymers3M INNOVATIVE PROPERTIES CO·Filed 2010·Application pending·0 cites
- 4654US4343749AProcess for the preparation of monohydroperfluoroalkane-sulfonic acid halides and some specific representatives of this class of compoundHOECHST AG·Filed 1981·Granted Aug 10, 1982·4 cites·5 claims
- 4753US2008015304A1Aqueous emulsion polymerization process for producing fluoropolymersHINTZER KLAUS·Filed 2006·Application pending·0 cites
- 4852US4343742AProcess for the manufacture of 2,3-perfluoro-1,4-dioxanes as well as some special representatives of compounds of this classHOECHST AG·Filed 1981·Granted Aug 10, 1982·3 cites·6 claims
- 4951US8623957B2Method of preparing fluoropolymers by aqueous emulsion polymerizationHINTZER KLAUS·Filed 2008·Granted Jan 7, 2014·0 cites·11 claims
- 5050US7678859B2Preparation and stabilization of fluoropolymer dispersions3M INNOVATIVE PROPERTIES CO·Filed 2006·Granted Mar 16, 2010·0 cites·14 claims
Showing the top 50 of 70 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Werner Schwertfeger 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 →