Inventor · disambiguated record
Paul Douglas Brothers
Also filed as: BROTHERS PAUL · BROTHERS PAUL D · BROTHERS PAUL DOUGLAS
45 granted patents·27 pending applications·1,188 citations·filing 1989–2023
98Inventor score
Top patents by PatentIndex Score
72 records- 0198US7977438B2Aqueous polymerization of fluorinated monomers using polymerization agent comprising fluoropolyether acid or salt and siloxane surfactantDU PONT·Filed 2007·Granted Jul 12, 2011·48 cites·24 claims
- 0298US7705074B2Aqueous polymerization of fluorinated monomer using polymerization agent comprising fluoropolyether acid or salt and short chain fluorosurfactantDU PONT·Filed 2007·Granted Apr 27, 2010·36 cites·6 claims
- 0397US9255164B2Aqueous polymerization of perfluoromonomer using hydrocarbon surfactantBROTHERS PAUL DOUGLAS·Filed 2011·Granted Feb 9, 2016·17 cites·26 claims
- 0497US7897682B2Aqueous polymerization of fluorinated monomers using polymerization agent comprising fluoropolyether acid or salt and hydrocarbon surfactantDU PONT·Filed 2007·Granted Mar 1, 2011·37 cites·4 claims
- 0597US6300445B1Fluorocyanate and fluorocarbamate monomers and polymers thereofDU PONT·Filed 1998·Granted Oct 9, 2001·93 cites·7 claims
- 0696US6177196B1Phosphorus-containing fluoromonomers and polymers thereofDU PONT·Filed 1999·Granted Jan 23, 2001·122 cites·7 claims
- 0795US6423798B2Copolymers of maleic anhydride or acid and fluorinated oleffinsDU PONT·Filed 2001·Granted Jul 23, 2002·42 cites·9 claims
- 0893US8563670B2Nucleation in aqueous polymerization of fluoromonomerBROTHERS PAUL DOUGLAS·Filed 2011·Granted Oct 22, 2013·12 cites·6 claims
- 0993US8519072B2Aqueous polymerization of fluorinated monomer using polymerization agent comprising fluoropolyether acid or salt and short chain fluorosurfactantBROTHERS PAUL DOUGLAS·Filed 2011·Granted Aug 27, 2013·6 cites·14 claims
- 1093US6232372B1Multicomponent particles of fluoropolymer and high temperature resistant non-dispersed polymer binderDU PONT·Filed 1999·Granted May 15, 2001·92 cites·27 claims
- 1192US6107423ACopolymers of maleic anhydride or acid and fluorinated olefinsDU PONT·Filed 1998·Granted Aug 22, 2000·54 cites·16 claims
- 1292US5919878AAmorphous fluoropolymer containing perfluoro(ethyl vinyl ether)DU PONT·Filed 1997·Granted Jul 6, 1999·68 cites·14 claims
- 1391US9518170B2Aqueous polymerization of perfluoromonomer using hydrocarbon surfactantCHEMOURS CO FC LLC·Filed 2016·Granted Dec 13, 2016·3 cites·18 claims
- 1491US9074025B2Reducing the telogenic behavior of hydrocarbon-containing surfactants in aqueous dispersion fluoromonomer polymerizationBROTHERS PAUL DOUGLAS·Filed 2011·Granted Jul 7, 2015·11 cites·16 claims
- 1591US6328009B1Valve lifter apparatusCOMPETITION CAMS INC·Filed 1999·Granted Dec 11, 2001·49 cites·3 claims
- 1690US9732212B2Aqueous polymerization of fluorinated monomer using a mixture of fluoropolyether acids or saltsCHEMOURS CO FC LLC·Filed 2015·Granted Aug 15, 2017·3 cites·10 claims
- 1789US7932333B2Aqueous polymerization of fluorinated monomer using polymerization agent comprising high molecular weight fluoropolyether acid or salt and fluoropolyether acid or salt surfactantDU PONT·Filed 2007·Granted Apr 26, 2011·6 cites·21 claims
- 1888US6228963B1Copolymers of maleic anhydride or acid and fluorinated olefinsDU PONT·Filed 1999·Granted May 8, 2001·43 cites·9 claims
- 1987US6357407B2Anti-rotation valve lifter guide apparatusCOMPETITION CAMS·Filed 2001·Granted Mar 19, 2002·29 cites·8 claims
- 2087US2022389128A1Aqueous polymerization of fluorinated monomer using polymerization agent comprising fluoropolyether acid or salt and short chain fluorosurfactantCHEMOURS CO FC LLC·Filed 2022·Application pending·0 cites
- 2185US6103844APolymerization of fluoromonomers in carbon dioxideDU PONT·Filed 1998·Granted Aug 15, 2000·48 cites·14 claims
- 2282US2024021952A1Li-ion battery having improved safety against combustionCHEMOURS CO FC LLC·Filed 2023·Application pending·0 cites
- 2380US5866711AFluorocyanate and fluorocarbamate monomers and polymers thereofDU PONT·Filed 1997·Granted Feb 2, 1999·16 cites·5 claims
- 2479US5166236ACrosslinkable fluoro elastomer compositionDU PONT·Filed 1990·Granted Nov 24, 1992·30 cites·19 claims
- 2578US9371405B2Nucleation in aqueous polymerization of fluoromonomerCHEMOURS CO FC LLC·Filed 2013·Granted Jun 21, 2016·2 cites·15 claims
- 2675US11655312B2Aqueous polymerization of perfluoromonomer using hydrocarbon surfactantCHEMOURS CO FC LLC·Filed 2020·Granted May 23, 2023·0 cites·26 claims
- 2774US7112314B2Polymerization employing diacyl peroxide made in aprotic solventDU PONT·Filed 2004·Granted Sep 26, 2006·6 cites·13 claims
- 2874US5217494ATissue supporting prosthesisCOGGINS PETER R·Filed 1991·Granted Jun 8, 1993·161 cites·15 claims
- 2972US11799166B2Li-ion battery having improved safety against combustionCHEMOURS CO FC LLC·Filed 2019·Granted Oct 24, 2023·0 cites·26 claims
- 3072US11440981B2Aqueous polymerization of fluorinated monomer using polymerization agent comprising fluoropolyether acid or salt and short chain fluorosurfactantCHEMOURS CO FC LLC·Filed 2013·Granted Sep 13, 2022·0 cites·41 claims
- 3172US9676929B2Employing polyalkylene oxides for nucleation in aqueous polymerization of fluoromonomerCHEMOURS CO FC LLC·Filed 2014·Granted Jun 13, 2017·1 cites·17 claims
- 3271US2017198070A1Aqueous polymerization of fluorinated monomer using polymerization agent comprising fluoropolyether acid or salt and short chain fluorosurfactantCHEMOURS CO FC LLC·Filed 2017·Application pending·0 cites
- 3368US5969067APhosphorus-containing fluoromonomers and polymers thereofDU PONT·Filed 1997·Granted Oct 19, 1999·19 cites·12 claims
- 3467US10703829B2Aqueous polymerization of perfluoromonomer using hydrocarbon surfactantCHEMOURS CO FC LLC·Filed 2016·Granted Jul 7, 2020·0 cites·7 claims
- 3564US4955906AMammary prosthesis injectorCOGGINS PETER R·Filed 1989·Granted Sep 11, 1990·83 cites·14 claims
- 3663US2013217849A1Aqueous polymerization of fluorinated monomer using a mixture of fluoropolyether acids or saltsDU PONT·Filed 2013·Application pending·0 cites
- 3762US2025326703A1High purity fluoroolefin compositions and methods of impurity removalCHEMOURS CO FC LLC·Filed 2023·Application pending·0 cites
- 3861US2012004365A1Aqueous Polymerization of Fluorinated Monomer Using a Mixture of Fluoropolyether Acids or SaltsBROTHERS PAUL DOUGLAS·Filed 2011·Application pending·0 cites
- 3961US2009281241A1Aqueous Polymerization of Fluorinated Monomer Using a Mixture of Fluoropolyether Acids or SaltsDU PONT·Filed 2009·Application pending·0 cites
- 4060US6395937B2Synthesis of diacyl peroxide in carbon dioxideDU PONT·Filed 2001·Granted May 28, 2002·2 cites·16 claims
- 4160US2012077931A1Aqueous polymerization of fluorinated monomer using polymerization agent comprising fluoropolyether acid or salt and short chain fluorosurfactantBROTHERS PAUL DOUGLAS·Filed 2011·Application pending·0 cites
- 4260US2010152378A1Aqueous Polymerization of Fluorinated Monomer Using Polymerization Agent Comprising Fluoropolyether Acid or Salt and Short Chain FluorosurfactantDU PONT·Filed 2010·Application pending·0 cites
- 4360US2010152363A1Aqueous Polymerization of Fluorinated Monomer Using Polymerization Agent Comprising Fluoropolyether Acid or Salt and Short Chain FluorosurfactantDU PONT·Filed 2010·Application pending·0 cites
- 4459US10566592B2Li-ion battery having improved safety against combustionCHEMOURS CO FC LLC·Filed 2015·Granted Feb 18, 2020·0 cites·16 claims
- 4559US2009281261A1Abatement of Fluoroether Carboxylic Acids or Salts Employed in Fluoropolymer Resin ManufactureDU PONT·Filed 2009·Application pending·0 cites
- 4658US2010152379A1Aqueous Polymerization of Fluorinated Monomer Using Polymerization Agent Comprising Fluoropolyether Acid or Salt and Short Chain FluorosurfactantDU PONT·Filed 2010·Application pending·0 cites
- 4757US2015344592A1Fluoropolymer dispersion treatment employing oxidizing agent to reduce fluoropolymer resin discolorationCHEMOURS CO FC LLC·Filed 2015·Application pending·0 cites
- 4857US2013303717A1Fluoropolymer Dispersion Treatment Employing Oxidizing Agent to Reduce Fluoropolymer Resin DiscolorationDU PONT·Filed 2013·Application pending·0 cites
- 4957US2013303718A1Fluoropolymer Dispersion Treatment Employing Oxidizing Agent to Reduce Fluoropolymer Resin DiscolorationDU PONT·Filed 2013·Application pending·0 cites
- 5056US6051682APolymerization of fluoropolymers in carbon dioxideDU PONT·Filed 1997·Granted Apr 18, 2000·22 cites·7 claims
Showing the top 50 of 72 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →