Inventor · disambiguated record
Robert James Letchford
Also filed as: LETCHFORD ROBERT J · LETCHFORD ROBERT JAMES
21 granted patents·6 pending applications·421 citations·filing 1996–2004
96Inventor score
Files withFMC CORP24
Top patents by PatentIndex Score
27 records- 0192US6703446B2Hetero-telechelic polymers and processes for making sameFMC CORP·Filed 2002·Granted Mar 9, 2004·31 cites·21 claims
- 0290US6160054AHetero-telechelic polymers and processes for making sameFMC CORP·Filed 1996·Granted Dec 12, 2000·50 cites·32 claims
- 0389US6221991B1Methacrylate and acrylate polymers and processes for making sameFMC CORP·Filed 1998·Granted Apr 24, 2001·57 cites·61 claims
- 0488US6706821B1Michael addition products of amine terminated polyolefins and polyfunctional acrylatesFMC CORP·Filed 2001·Granted Mar 16, 2004·24 cites·12 claims
- 0586US6720391B2Functionalized initiators for anionic polymerization, protected functionalized polymers, deprotected analogues thereof, and methods of making the sameFMC CORP·Filed 2002·Granted Apr 13, 2004·19 cites·17 claims
- 0684US6184338B1Anionic polymerization initiators containing tertiary amine functionality, their chain extended analogues, and processes for using the sameFMC CORP·Filed 1998·Granted Feb 6, 2001·47 cites·32 claims
- 0780US6812295B2Functionalized initiators for anionic polymerization, protected functionalized polymers, deprotected analogues thereof, and methods of making the sameFMC CORP·Filed 2004·Granted Nov 2, 2004·11 cites·17 claims
- 0879US6197891B1Functionalized chain extended initiators for anionic polymerizationFMC CORP·Filed 1996·Granted Mar 6, 2001·37 cites·161 claims
- 0977US5919870AFunctional telechelic star polymersFMC CORP·Filed 1996·Granted Jul 6, 1999·34 cites·38 claims
- 1070US6031060AFunctionalized silicone polymers and processes for making the sameFMC CORP·Filed 1998·Granted Feb 29, 2000·20 cites·33 claims
- 1168US6545103B2Compositions providing improved functionalization of terminal anions and processes for improved functionalization of terminal anionsFMC CORP·Filed 2001·Granted Apr 8, 2003·4 cites·4 claims
- 1268US6271330B1Functionalized silicone polymers and processes for making the sameFMC CORP·Filed 1999·Granted Aug 7, 2001·18 cites·13 claims
- 1364US6858679B2Compositions providing improved functionalization of terminal anions and processes for improved functionalization of terminal anionsFMC CORP·Filed 2003·Granted Feb 22, 2005·2 cites·34 claims
- 1462US5900464AProcesses for making methacrylate and acrylate polymersFMC CORP·Filed 1996·Granted May 4, 1999·15 cites·19 claims
- 1557US6699939B2Hetero-telechelic polymers and processes for making sameFMC CORP·Filed 2002·Granted Mar 2, 2004·2 cites·46 claims
- 1655US6107408AProcesses for improving linking efficiencies in the synthesis of star polymersFMC CORP·Filed 1998·Granted Aug 22, 2000·12 cites·27 claims
- 1753US6121474AAmine anionic polymerization initiators and functionalized polymers derived therefromFMC CORP·Filed 1999·Granted Sep 19, 2000·10 cites·19 claims
- 1851US6344521B1Protected functionalized diene and alkenyl substituted aromatic silicone triblock copolymers and processes for making the sameFMC CORP·Filed 2000·Granted Feb 5, 2002·10 cites·38 claims
- 1950US6153706AProtected multi-functionalized star polymers and processes for making the sameFMC CORP·Filed 1998·Granted Nov 28, 2000·9 cites·42 claims
- 2049US6020430AFunctionalized diene and alkenylsubstituted aromatic silicone copolymers and processes for making the sameFMC CORP·Filed 1998·Granted Feb 1, 2000·9 cites·38 claims
- 2144US2004048985A1Michael addition products of amine terminated polyolefins and polyfunctional acrylatesFiled 2003·Application pending·0 cites
- 2243US2003032745A1Hetero-telechelic polymers and processes for making sameFiled 2000·Application pending·0 cites
- 2341US2001053838A1Terminal olefin functionalized macromonomersFMC CORP·Filed 2001·Application pending·0 cites
- 2440US2004082720A1Adducts of amine-terminated polyolefins and epoxidesFMC CORP·Filed 2001·Application pending·0 cites
- 2537US2003069366A1Urethane oligomers of heterotelechelic amine functional polyolefinsFiled 2002·Application pending·0 cites
- 2637US2004030048A1Heterotelechelic polyolefin polymer adducts with epoxidesFMC CORP·Filed 2001·Application pending·0 cites
- 2731US6605564B1Compositions providing improved functionalization of terminal anions and processes for improved functionalization of terminal anionsFMC CORP·Filed 1999·Granted Aug 12, 2003·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →