Inventor · disambiguated record
Stephen N. Vaughn
Also filed as: VAUGHN STEPHEN N · VAUGHN STEPHEN NEIL
100 granted patents·3 pending applications·1,952 citations·filing 1989–2012
99Inventor score
Files withEXXONMOBIL CHEM PATENTS INC76EXXON CHEMICAL PATENTS INC7EXXON MOBIL CHEM PATENTS INC5EXXON RESEARCH ENGINEERING CO5MERTENS MACHTELD M3
Top patents by PatentIndex Score
103 records- 0197US6509290B1Catalyst composition including attrition particles and method for making sameEXXON MOBIL CHEM PATENTS INC·Filed 2000·Granted Jan 21, 2003·103 cites·22 claims
- 0296US6023005AProcess for converting oxygenates to olefins using molecular sieve catalysts comprising desirable carbonaceous depositsEXXON CHEMICAL PATENTS INC·Filed 1997·Granted Feb 8, 2000·128 cites·42 claims
- 0395US7238846B2Conversion processEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted Jul 3, 2007·52 cites·18 claims
- 0495US6503863B2Heat treating a molecular sieve and catalystEXXONMOBIL CHEM PATENTS INC·Filed 2001·Granted Jan 7, 2003·66 cites·17 claims
- 0595US5952538AUse of short contact time in oxygenate conversionEXXON CHEMICAL PATENTS INC·Filed 1997·Granted Sep 14, 1999·78 cites·18 claims
- 0694US7125821B2Low metal content catalyst compositions and processes for making and using sameEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Oct 24, 2006·54 cites·108 claims
- 0793US7332636B2Low metal content catalyst compositions and processes for making and using sameEXXONMOBIL CHEM PATENTS INC·Filed 2006·Granted Feb 19, 2008·12 cites·23 claims
- 0893US7151199B2Hydrocarbon conversion processes using non-zeolitic molecular sieve catalystsEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted Dec 19, 2006·55 cites·67 claims
- 0993US6657022B2Inhibiting catalyst coke formation in the manufacture of an olefinEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted Dec 2, 2003·46 cites·48 claims
- 1093US6444868B1Process to control conversion of C4+ and heavier stream to lighter products in oxygenate conversion reactionsEXXON MOBIL CHEM PATENTS INC·Filed 2000·Granted Sep 3, 2002·44 cites·18 claims
- 1193US6441261B1High pressure oxygenate conversion process via diluent co-feedEXXONMOBIL CHEM PATENTS INC·Filed 2000·Granted Aug 27, 2002·58 cites·43 claims
- 1292US7402718B2Conversion processEXXONMOBIL CHEM PATENTS INC·Filed 2007·Granted Jul 22, 2008·15 cites·5 claims
- 1392US6455749B1Method for increasing light olefin yield by conversion of a heavy hydrocarbon fraction of a product to light olefinsEXXONMOBIL CHEM PATENTS INC·Filed 1997·Granted Sep 24, 2002·41 cites·36 claims
- 1491US6541415B2Synthesis of molecular sieve catalystsEXXONMOBIL CHEM PATENTS INC·Filed 2001·Granted Apr 1, 2003·34 cites·16 claims
- 1591US6395674B1Heat treating a molecular sieve and catalystEXXON MOBIL CHEM PATENTS INC·Filed 1999·Granted May 28, 2002·45 cites·12 claims
- 1690US7309806B2Maintaining molecular sieve catalytic activity under water vapor conditionsEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Dec 18, 2007·18 cites·56 claims
- 1790US6787501B2Molecular sieve catalyst composition, its making and use in conversion processesEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted Sep 7, 2004·21 cites·37 claims
- 1890US6710008B2Method of making molecular sieve catalystEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted Mar 23, 2004·39 cites·62 claims
- 1990US5907076AProcess for selectively separating hydrogen, or both hydrogen and carbon monoxide from olefinic hydrocarbonsEXXON CHEMICAL PATENTS INC·Filed 1997·Granted May 25, 1999·50 cites·19 claims
- 2089US7622624B2Crystalline intergrowth material, its synthesis and its use in the conversion of oxygenates to olefinsEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Nov 24, 2009·7 cites·18 claims
- 2188US6316683B1Protecting catalytic activity of a SAPO molecular sieveEXXONMOBIL CHEM PATENTS INC·Filed 1999·Granted Nov 13, 2001·69 cites·32 claims
- 2287US7273827B2Molecular sieve catalyst composition, its production and use in conversion processesEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Sep 25, 2007·11 cites·29 claims
- 2386US7160831B2Molecular sieve catalyst composition, its making and use in conversion processesEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted Jan 9, 2007·18 cites·46 claims
- 2486US6521562B1Preparation of molecular sieve catalysts micro-filtrationEXXONMOBIL CHEM PATENTS INC·Filed 2000·Granted Feb 18, 2003·49 cites·35 claims
- 2585US6531639B1Catalytic production of olefins at high methanol partial pressuresEXXONMOBIL CHEM PATENTS INC·Filed 2000·Granted Mar 11, 2003·13 cites·37 claims
- 2685US6440894B1Methods of removing halogen from non-zeolitic molecular sieve catalystsEXXONMOBIL CHEM PATENTS INC·Filed 2001·Granted Aug 27, 2002·23 cites·57 claims
- 2785US6153552AMethods for making catalystsEXXON CHEMICAL PATENTS INC·Filed 1997·Granted Nov 28, 2000·66 cites·8 claims
- 2885US6051746AOxygenate conversions using modified small pore molecular sieve catalystsEXXON CHEMICAL PATENTS INC·Filed 1997·Granted Apr 18, 2000·68 cites·16 claims
- 2984US7411106B2Molecular sieve compositions, catalyst thereof, their making and use in conversion processesEXXONMOBIL CHEM PATENTS INC·Filed 2007·Granted Aug 12, 2008·6 cites·18 claims
- 3084US7090081B2Selectively removing undesirably sized catalyst particles from a reaction systemEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Aug 15, 2006·21 cites·14 claims
- 3184US7053260B2Reducing temperature differences within the regenerator of an oxygenate to olefin processEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted May 30, 2006·15 cites·36 claims
- 3283US7557256B2Molecular sieve catalyst composition, its making and use in conversion processesEXXONMOBIL CHEM PATENTS INC·Filed 2007·Granted Jul 7, 2009·3 cites·5 claims
- 3383US7465845B2Increasing ethylene and/or propylene production in an oxygenate to olefins reaction systemsEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Dec 16, 2008·4 cites·20 claims
- 3483US6613950B1Stripping hydrocarbon in an oxygenate conversion processEXXONMOBIL CHEM PATENTS INC·Filed 2000·Granted Sep 2, 2003·11 cites·19 claims
- 3582US6455748B2Protecting catalytic activity of a SAPO molecular sieveEXXONMOBIL CHEM PATENTS INC·Filed 2001·Granted Sep 24, 2002·24 cites·68 claims
- 3682US6069288AProcess for selectively separating hydrogen, or both hydrogen and carbon monoxide from olefinic hydrocarbonsEXXON CHEMICAL PATENTS INC·Filed 1999·Granted May 30, 2000·25 cites·22 claims
- 3781US7015174B2Maintaining molecular sieve catalytic activity under water vapor conditionsEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Mar 21, 2006·15 cites·49 claims
- 3881US6040264AUse of alkaline earth metal containing small pore non-zeolitic molecular sieve catalysts in oxygenate conversionEXXON CHEMICAL PATENTS INC·Filed 1996·Granted Mar 21, 2000·46 cites·17 claims
- 3980US8178741B2Method and apparatus for regenerating catalyst during oxygenates to olefins reactionCAO CHUNSHE J·Filed 2010·Granted May 15, 2012·5 cites·12 claims
- 4080US7453020B2Molecular sieve catalyst composition, its making and use in conversion processesEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Nov 18, 2008·5 cites·30 claims
- 4180US6245703B1Efficient method using liquid water to regenerate oxygenate to olefin catalysts while increasing catalyst specificity to light olefinsEXXON MOBIL CHEM PATENTS INC·Filed 1998·Granted Jun 12, 2001·48 cites·4 claims
- 4279US6872680B2Molecular sieve catalyst composition, its making and use in conversion processesEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted Mar 29, 2005·7 cites·21 claims
- 4379US6552240B1Method for converting oxygenates to olefinsEXXONMOBIL CHEM PATENTS INC·Filed 2000·Granted Apr 22, 2003·15 cites·70 claims
- 4479US6482999B2Method for improving light olefin selectivity in an oxygenate conversion reactionEXXONMOBIL CHEM PATENTS INC·Filed 1999·Granted Nov 19, 2002·21 cites·17 claims
- 4578US7241713B2Molecular sieve catalyst composition, its making and use in conversion processesEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Jul 10, 2007·6 cites·33 claims
- 4677US6809227B2Method for increasing light olefin yield by conversion of a heavy hydrocarbon fraction of a product to light olefinsEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted Oct 26, 2004·16 cites·22 claims
- 4777US6737556B2Method and system for reducing decomposition byproducts in a methanol to olefin reactor systemEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted May 18, 2004·13 cites·58 claims
- 4877US5151173AConversion of coal with promoted carbon monoxide pretreatmentEXXON RESEARCH ENGINEERING CO·Filed 1989·Granted Sep 29, 1992·34 cites·16 claims
- 4976US8182780B2Synthesis of chabazite-containing molecular sieves and their use in the conversion of oxygenates to olefinsMERTENS MACHTELD M·Filed 2009·Granted May 22, 2012·2 cites·14 claims
- 5076US7947621B2Method of making and process for using molecular sieve catalystEXXONMOBIL CHEM PATENTS INC·Filed 2007·Granted May 24, 2011·3 cites·25 claims
Showing the top 50 of 103 patent records by PatentIndex Score.
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