Inventor · disambiguated record
David J. Tracy
Also filed as: TRACY DAVID J · TRACY DAVID JAMES
53 granted patents·1,083 citations·filing 1976–1999
99Inventor score
Top patents by PatentIndex Score
53 records- 0198US5093031ASurface active lactamsISP INVESTMENTS INC·Filed 1988·Granted Mar 3, 1992·105 cites·2 claims
- 0295US5914310AAmphoteric surfactants having multiple hydrophobic and hydrophilic groupsRHODIA·Filed 1997·Granted Jun 22, 1999·99 cites·19 claims
- 0393US5294644ASurface active lactamsISP INVESTMENTS INC·Filed 1991·Granted Mar 15, 1994·107 cites·6 claims
- 0492US6204297B1Nonionic gemini surfactantsRHODIA·Filed 1996·Granted Mar 20, 2001·95 cites·6 claims
- 0592US5643498AQuaternary cationic surfactants having multiple hydrophobic and hydrophilic groupsRHONE POULENC INC·Filed 1994·Granted Jul 1, 1997·51 cites·20 claims
- 0686US5710121AAnionic surfactants having multiple hydrophobic and hydrophilic groupsRHONE POULENC INC·Filed 1996·Granted Jan 20, 1998·45 cites·22 claims
- 0786US4885371AProcess for the preparation of purified N-alkyl lactamsGAF CHEMICALS CORP·Filed 1989·Granted Dec 5, 1989·22 cites·11 claims
- 0884US5863886ANonionic gemini surfactants having multiple hydrophobic and hydrophilic sugar groupsRHODIA·Filed 1997·Granted Jan 26, 1999·51 cites·17 claims
- 0982US4885158AHeat stable quaternized lactams having oxylated sulfur anionsGAF CORP·Filed 1988·Granted Dec 5, 1989·18 cites·20 claims
- 1081US4883655AQuaternized nitrogen containing polycyclic compoundsGAF CORP·Filed 1987·Granted Nov 28, 1989·16 cites·18 claims
- 1178US5846926ANonionic gemini surfactants with three hydrophilic heads and two lipophilic tailsRHODIA·Filed 1997·Granted Dec 8, 1998·19 cites·24 claims
- 1276US5789371AAmphoteric surfactants having multiple hydrophobic and hydrophilic groupsRHODIA·Filed 1997·Granted Aug 4, 1998·33 cites·18 claims
- 1375US5952290AAnionic gemini surfactants and methods for their preparationRHODIA·Filed 1997·Granted Sep 14, 1999·32 cites·20 claims
- 1475US5643864AAnionic surfactants having multiple hydrophobic and hydrophilic groupsRHONE POULENC INC·Filed 1994·Granted Jul 1, 1997·42 cites·14 claims
- 1575US4259474ASulfur-containing polyoxyalkylenesGAF CORP·Filed 1979·Granted Mar 31, 1981·16 cites·21 claims
- 1673US5300665AProcess for preparing fatty acid esters and amides of sulfonic acid saltsRHONE POULENC SURFACTANTS·Filed 1992·Granted Apr 5, 1994·21 cites·20 claims
- 1769US4732990AQuaternized nitrogen containing compoundsGAF CORP·Filed 1986·Granted Mar 22, 1988·28 cites·9 claims
- 1865US5656586AAmphoteric surfactants having multiple hydrophobic and hydrophilic groupsRHONE POULENC INC·Filed 1994·Granted Aug 12, 1997·24 cites·16 claims
- 1965US4886890ADiquarternary nitrogen compoundsGAF CORP·Filed 1988·Granted Dec 12, 1989·6 cites·6 claims
- 2064US5744063AHigher purity imidazoline based amphoacetate surfactants and processes for the preparation thereofRHONE POULENC INC·Filed 1997·Granted Apr 28, 1998·17 cites·15 claims
- 2164US4806609APyrrolidonyl acrylate block polymersGAF CORP·Filed 1988·Granted Feb 21, 1989·14 cites·9 claims
- 2263US5945393ANonionic gemini surfactantsRHODIA·Filed 1997·Granted Aug 31, 1999·16 cites·14 claims
- 2363US4801400AEpoxy pyrrolidone based non-ionic surfactantsGAF CORP·Filed 1987·Granted Jan 31, 1989·12 cites·10 claims
- 2462US4129739AAmidine compoundsGAF CORP·Filed 1976·Granted Dec 12, 1978·5 cites·11 claims
- 2557US5811384ANonionic gemini surfactantsRHODIA·Filed 1997·Granted Sep 22, 1998·16 cites·36 claims
- 2656US5922671AAnionic surfactants having multiple hydrophobic and hydrophilic groupsRHODIA·Filed 1997·Granted Jul 13, 1999·13 cites·26 claims
- 2756US5900397ANonylphenol nonionic gemini surfactantsRHODIA·Filed 1997·Granted May 4, 1999·5 cites·9 claims
- 2856US5837668AAcyloxyalkane sulfonate and amphoteric surfactant blend compositions and methods for preparing sameRHODIA·Filed 1996·Granted Nov 17, 1998·6 cites·22 claims
- 2955US4760152APyrrolidonyl acrylate block polymersGAF CORP·Filed 1987·Granted Jul 26, 1988·15 cites·11 claims
- 3052US4255561ASulfide polymers of polyoxyalkylenesGAF CORP·Filed 1979·Granted Mar 10, 1981·10 cites·20 claims
- 3151US5952291AProcess for the preparation of high purity imidazoline based amphoacetate surfactantsRHODIA·Filed 1998·Granted Sep 14, 1999·3 cites·21 claims
- 3251US4313764AIsocyanate polyoxyalkylenesGAF CORP·Filed 1980·Granted Feb 2, 1982·9 cites·1 claims
- 3350US5156837ACosmetic compositions containing quaternized nitrogen compoundsISP INVESTMENTS INC·Filed 1990·Granted Oct 20, 1992·11 cites·5 claims
- 3449US5783554ACleaning compositions containing anionic surfactants having multiple hydrophobic and hydrophilic groupsRHODIA·Filed 1997·Granted Jul 21, 1998·11 cites·22 claims
- 3547US6121222AAnionic surfactants having multiple hydrophobic and hydrophilic groupsRHODIA·Filed 1996·Granted Sep 19, 2000·10 cites·20 claims
- 3646US4842858APolymeric halophorsGAF CORP·Filed 1987·Granted Jun 27, 1989·6 cites·12 claims
- 3746US4713463ASynthesis of n-epoxypropyl lactamsGAF CORP·Filed 1986·Granted Dec 15, 1987·2 cites·8 claims
- 3845US5110585AQuaternized nitrogen containing polycyclic compoundsISP INVESTMENTS INC·Filed 1989·Granted May 5, 1992·11 cites·19 claims
- 3944US4830851APolymeric halophorsGAF CORP·Filed 1987·Granted May 16, 1989·11 cites·19 claims
- 4043US5011941AQuaternized nitrogen containing compoundsGAF CHEMICALS CORP·Filed 1990·Granted Apr 30, 1991·2 cites·4 claims
- 4142US4261912AEster of ω,ω-bis(dialkylhydroxyphenyl) alkanols as effective antioxidantsGAF CORP·Filed 1979·Granted Apr 14, 1981·6 cites·39 claims
- 4241US5008104AQuaternized nitrogen containing compoundsGAF CHEMICALS CORP·Filed 1989·Granted Apr 16, 1991·7 cites·5 claims
- 4340US6057282AHigh purity imidazoline-based amphoacetate surfactantsRHODIA·Filed 1999·Granted May 2, 2000·4 cites·19 claims
- 4439US4837013AQuaternized nitrogen containing compoundsGAF CORP·Filed 1987·Granted Jun 6, 1989·7 cites·24 claims
- 4539US4834970ACosometic compositions containing quaternized nitrogen containing compoundGAF CORP·Filed 1987·Granted May 30, 1989·7 cites·21 claims
- 4639US4830850AQuaternized nitrogen containing compoundsGAF CORP·Filed 1987·Granted May 16, 1989·6 cites·19 claims
- 4738US4698412ALactam copolymersGAF CORP·Filed 1987·Granted Oct 6, 1987·7 cites·10 claims
- 4838US4113954AProcess for the preparation of 3-anilino-5-pyrazolonesGAF CORP·Filed 1976·Granted Sep 12, 1978·2 cites·17 claims
- 4932US4138571ANitrophenyl imino propionatesGAF CORP·Filed 1976·Granted Feb 6, 1979·0 cites·2 claims
- 5031US6057463AN-acylaminoalkane sulfonate and amphoteric surfactant blends and methods for preparing the sameRHODIA·Filed 1996·Granted May 2, 2000·2 cites·41 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →