SV

Stephen N. Vaughn

EX ExxonMobil: 99 patents #28 of 10,161Top 1%
Overall (All Time): #14,592 of 4,157,543Top 1%
100
Patents All Time

Issued Patents All Time

Showing 25 most recent of 100 patents

Patent #TitleCo-InventorsDate
8415519 Methods for determining efficacy of metal oxide co-catalysts for oxygenates-to-olefins reactions Sebastien P. B. Kremer, Teng Xu 2013-04-09
8293854 Synthesis of chabazite-containing molecular sieves and their use in the conversion of oxygenates to olefins Machteld M. Mertens, Guang Cao, Luc Martens, Mobae Afeworki 2012-10-23
8268277 Synthesis of chabazite-containing molecular sieves and their use in the conversion of oxygenates to olefins Machteld M. Mertens 2012-09-18
8182780 Synthesis of chabazite-containing molecular sieves and their use in the conversion of oxygenates to olefins Machteld M. Mertens, Guang Cao, Luc Martens, Mobae Afeworki 2012-05-22
8178741 Method and apparatus for regenerating catalyst during oxygenates to olefins reaction Chunshe Cao, James H. Beech, Jr., Michael Nicoletti, Thomas H. Colle, Teng Xu 2012-05-15
8080700 System and method for reducing decomposition byproducts in a methanol to olefin reactor system Gary T. Schmidt, Teng Xu, Christopher E. Dilley 2011-12-20
7977521 Oxygenate to olefins process involving supercritcal conditions Luc R. M. Martens, John Richard Shutt 2011-07-12
7947621 Method of making and process for using molecular sieve catalyst Yun-Feng Chang, Machteld M. Mertens 2011-05-24
7914760 Crystalline intergrowth material of silicoaluminophosphate having two intergrown phases Machteld M. Mertens, An Verberckmoes, Marcel Janssen, Yun-Feng Chang, Luc R. M. Martens +2 more 2011-03-29
7781633 Method for converting an oxygenate feed to a light olefin Keith H. Kuechler, Thomas H. Colle, Teng Xu 2010-08-24
7772337 Method of formulating a molecular sieve catalyst composition by controlling component addition Yun-Feng Chang 2010-08-10
7763765 Method of high pressure and high capacity oxygenate conversion with catalyst exposure cycle Keith H. Kuechler, James H. Beech, Jr., Doron Levin, Stephen H. Brown 2010-07-27
7732537 Methods addressing aging in flocculated molecular sieve catalysts for hydrocarbon conversion processes Yun-Feng Chang, Luc R. M. Martens, Machteld M. Mertens 2010-06-08
7687675 Stabilizing catalyst activity during catalyst regeneration Teng Xu, Kenneth R. Clem, James H. Beech, Jr., Peter Loezos, Richard B. Hall +1 more 2010-03-30
7622624 Crystalline intergrowth material, its synthesis and its use in the conversion of oxygenates to olefins Machteld M. Mertens, An Verberckmoes, Marcel Janssen, Yun-Feng Chang, Luc R. M. Martens +2 more 2009-11-24
7619128 Stabilizing catalyst activity during catalyst regeneration Teng Xu, Kenneth R. Clem, James H. Beech, Jr., Pete Loezos 2009-11-17
7557256 Molecular sieve catalyst composition, its making and use in conversion processes Yun-Feng Chang, Kenneth R. Clem, Luc R. M. Martens, Weiguo Hu 2009-07-07
7518026 Catalyst and process for the conversion of oxygenates to olefins Machteld M. Mertens, Marcel Janssen, Yun-Feng Chang 2009-04-14
7511184 Molecular sieve catalyst composition, its making and use in conversion processes Yun-Feng Chang, Luc R. M. Martens, Kenneth R. Clem 2009-03-31
7501375 Molecular sieve catalyst composition, its making and use in conversion processes Yun-Feng Chang, Kenneth R. Clem, Luc R. M. Martens, Weiguo Hu 2009-03-10
7465845 Increasing ethylene and/or propylene production in an oxygenate to olefins reaction systems Teng Xu 2008-12-16
7453019 Conversion process Marcel Janssen, Teng Xu, Cor F. Van Egmond, Keith Kuechler 2008-11-18
7453020 Molecular sieve catalyst composition, its making and use in conversion processes Yun-Feng Chang, Luc R. M. Martens 2008-11-18
7449611 Molecular sieve catalyst composition, its making and use in conversion processes Yun-Feng Chang 2008-11-11
7411106 Molecular sieve compositions, catalyst thereof, their making and use in conversion processes Teng Xu, Richard B. Hall, Doron Levin, James C. Vartuli 2008-08-12