Inventor · disambiguated record
Dean Thetford
Also filed as: THETFORD DEAN
87 granted patents·18 pending applications·844 citations·filing 1994–2025
99Inventor score
Top patents by PatentIndex Score
105 records- 0199US7951211B2Quaternary ammonium salt detergents for use in fuelsLUBRIZOL CORP·Filed 2006·Granted May 31, 2011·95 cites·5 claims
- 0299US7947093B2Quaternary ammonium salt detergents for use in fuelsLUBRIZOL CORP·Filed 2010·Granted May 24, 2011·57 cites·5 claims
- 0397US7906470B2Quaternary ammonium salt of a Mannich compoundLUBRIZOL CORP·Filed 2006·Granted Mar 15, 2011·38 cites·10 claims
- 0496US8083814B2Quaternary ammonium salt of a mannich compoundSTEVENSON PAUL R·Filed 2011·Granted Dec 27, 2011·39 cites·15 claims
- 0595US5700395ADispersantsZENECA LTD·Filed 1994·Granted Dec 23, 1997·61 cites·10 claims
- 0694US8153570B2Quaternary ammonium salt detergents for use in lubricating compositionsBARTON WILLIAM·Filed 2011·Granted Apr 10, 2012·26 cites·5 claims
- 0793US6197877B1DispersantsZENECA LTD·Filed 1997·Granted Mar 6, 2001·69 cites·39 claims
- 0892US8476207B2Quaternary ammonium salt detergents for use in lubricating compositionsBARTON WILLIAM R S·Filed 2012·Granted Jul 2, 2013·8 cites·5 claims
- 0990US11326105B2Multi-amine polyester dispersant made via an anhydride intermediateLUBRIZOL ADVANCED MAT INC·Filed 2018·Granted May 10, 2022·2 cites·14 claims
- 1090US5516899APhthalocyaninesZENECA LTD·Filed 1994·Granted May 14, 1996·31 cites·6 claims
- 1189US5486274APoly-substituted phthalocyaninesZENECA LTD·Filed 1994·Granted Jan 23, 1996·22 cites·9 claims
- 1288US7872070B2CompositionsLUBRIZOL LTD·Filed 2005·Granted Jan 18, 2011·9 cites·13 claims
- 1388US7671119B2CompositionsLUBRIZOL LTD·Filed 2005·Granted Mar 2, 2010·10 cites·10 claims
- 1487US8168713B2Dispersants and compositions thereofTHETFORD DEAN·Filed 2006·Granted May 1, 2012·8 cites·17 claims
- 1586US9534123B2Aromatic dispersant compositionLUBRIZOL ADVANCED MAT INC·Filed 2013·Granted Jan 3, 2017·4 cites·9 claims
- 1685US2024343977A1Multi-amine dispersant made via an anhydride intermediateLUBRIZOL ADVANCED MAT INC·Filed 2024·Application pending·0 cites
- 1784US8076409B2Dispersant and compositions thereofTHETFORD DEAN·Filed 2006·Granted Dec 13, 2011·8 cites·11 claims
- 1883US10675889B2Dispersants for colouration of ceramic tiles using ink jet inksLUBRIZOL ADVANCED MAT INC·Filed 2016·Granted Jun 9, 2020·2 cites·6 claims
- 1982US6787600B1Polyester dispersantsLUBRIZOL CORP·Filed 2000·Granted Sep 7, 2004·32 cites·19 claims
- 2081US8809443B2Dispersant compositionTHETFORD DEAN·Filed 2011·Granted Aug 19, 2014·2 cites·13 claims
- 2181US7767750B2CompositionsLUBRIZOL CORP·Filed 2004·Granted Aug 3, 2010·17 cites·13 claims
- 2281US5753022AProcessZENECA LTD·Filed 1994·Granted May 19, 1998·16 cites·15 claims
- 2379US8664350B2Polymeric coupling agentsTHETFORD DEAN·Filed 2007·Granted Mar 4, 2014·3 cites·16 claims
- 2478US8167992B2Dispersant and compositions thereofTHETFORD DEAN·Filed 2006·Granted May 1, 2012·4 cites·6 claims
- 2577US11661522B2Aliphatic ceramics dispersantLUBRIZOL ADVANCED MAT INC·Filed 2021·Granted May 30, 2023·0 cites·10 claims
- 2677US6509409B1Polyurethane dispersantsAVECIA LTD·Filed 1999·Granted Jan 21, 2003·28 cites·33 claims
- 2776US9540486B2Aromatic dispersant compositionLUBRIZOL ADVANCED MAT INC·Filed 2013·Granted Jan 10, 2017·2 cites·13 claims
- 2876US2024287386A1Multi-amine polyester dispersant and method of makingLUBRIZOL ADVANCED MAT INC·Filed 2024·Application pending·0 cites
- 2975US10745506B2Acrylic dispersants with fused aromatic imide anchor groupsLUBRIZOL ADVANCED MATERIALS INC·Filed 2014·Granted Aug 18, 2020·2 cites·18 claims
- 3075US9796861B2Ink jet ink compositionsLUBRIZOL ADVANCED MAT INC·Filed 2015·Granted Oct 24, 2017·2 cites·20 claims
- 3175US8133914B2Compounds and compositions thereofTHETFORD DEAN·Filed 2007·Granted Mar 13, 2012·2 cites·12 claims
- 3275US7683120B2Dispersants and compositions thereofLUBRIZOL LTD·Filed 2006·Granted Mar 23, 2010·4 cites·5 claims
- 3375US2025277131A1Multi-amine polyester dispersant made via an anhydride intermediateLUBRIZOL ADVANCED MAT INC·Filed 2025·Application pending·0 cites
- 3474US12098318B2Multi-amine polyester dispersant made via an anhydride intermediateLUBRIZOL ADVANCED MAT INC·Filed 2022·Granted Sep 24, 2024·0 cites·13 claims
- 3574US7732514B2Filler compositesLUBRIZOL CORP·Filed 2003·Granted Jun 8, 2010·9 cites·18 claims
- 3674US7008988B2Paint compositionsLUBRIZOL CORP·Filed 2002·Granted Mar 7, 2006·11 cites·10 claims
- 3774US6583213B1Amine dispersantsAVECIA LTD·Filed 1999·Granted Jun 24, 2003·31 cites·18 claims
- 3874US6562897B1Ether/ester dispersantsAVECIA LTD·Filed 1999·Granted May 13, 2003·21 cites·20 claims
- 3973US11981831B2Multi-amine dispersant made via an anhydride intermediateLUBRIZOL ADVANCED MAT INC·Filed 2020·Granted May 14, 2024·0 cites·25 claims
- 4070US12338361B2Multi-amine polyester dispersant made via an anhydride intermediateLUBRIZOL ADVANCED MAT INC·Filed 2020·Granted Jun 24, 2025·0 cites·27 claims
- 4170US11649309B2Acrylic dispersants with fused aromatic imide anchor groupsLUBRIZOL ADVANCED MAT INC·Filed 2020·Granted May 16, 2023·0 cites·17 claims
- 4269US10160850B2Quaternary ammonium salt of a polyalkene-substituted amine compoundLUBRIZOL CORP·Filed 2014·Granted Dec 25, 2018·0 cites·14 claims
- 4369US7361692B2DispersantsLUBRIZOL CORP·Filed 2002·Granted Apr 22, 2008·7 cites·8 claims
- 4469US6787628B2Polyether/polyurethane association thickenersAVECIA LTD·Filed 2001·Granted Sep 7, 2004·9 cites·11 claims
- 4569US5629417APhthalocyaninesZENECA LTD·Filed 1996·Granted May 13, 1997·10 cites·1 claims
- 4667US6133366ACompound, preparation and useZENECA LTD·Filed 1996·Granted Oct 17, 2000·19 cites·10 claims
- 4767US6069210APhosphate esters of polyoxyalkylene ether block copolymers and their dispersantsZENECA LTD·Filed 1997·Granted May 30, 2000·18 cites·19 claims
- 4866US7348367B2DispersantsLUBRIZOL CORP·Filed 2001·Granted Mar 25, 2008·7 cites·22 claims
- 4965US10100152B2Aromatic dispersant compositionLUBRIZOL ADVANCED MAT INC·Filed 2016·Granted Oct 16, 2018·0 cites·19 claims
- 5064US11066565B2Aliphatic ceramics dispersantLUBRIZOL ADVANCED MAT INC·Filed 2017·Granted Jul 20, 2021·0 cites·5 claims
Showing the top 50 of 105 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Dean Thetford 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 →