Inventor
LEYSHON DAVID W
US40 patents
⚠️ This page may combine multiple inventors who share the name “LEYSHON DAVID W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LYONDELL CHEMICAL TECH LP
15 patentsUS7144499B2Dec 5, 2006
Desulfurization process
LYONDELL CHEMICAL TECH LP36 citations92
US9593090B2Mar 14, 2017
Alkylene oxide separation systems, methods, and apparatuses
LYONDELL CHEMICAL TECH LP2 citations71
US7270742B2Sep 18, 2007
Organosulfur oxidation process
LYONDELL CHEMICAL TECH LP5 citations62
US7816572B2Oct 19, 2010
Propylene and isoprene production
LYONDELL CHEMICAL TECH LP3 citations61
US7238260B2Jul 3, 2007
Purification of N-(2-hydroxyethyl)-2-pyrrolidone
LYONDELL CHEMICAL TECH LP4 citations61
US11590477B2Feb 28, 2023
Titanated catalysts, methods of preparing titanated catalysts, and methods of epoxidation
LYONDELL CHEMICAL TECH LP0 citations60
US9932318B2Apr 3, 2018
Catalyst performance in propylene epoxidation
LYONDELL CHEMICAL TECH LP0 citations52
US9643943B2May 9, 2017
Process for forming propylene oxide from oxidation of methyl benzyl alcohol
LYONDELL CHEMICAL TECH LP0 citations52
US11440858B2Sep 13, 2022
Method of improving olefin isomerization
LYONDELL CHEMICAL TECH LP0 citations51
US11261142B2Mar 1, 2022
Isobutylene to propylene process flow improvement
LYONDELL CHEMICAL TECH LP0 citations51
US10233166B2Mar 19, 2019
Alkylene oxide separation systems, methods, and apparatuses
LYONDELL CHEMICAL TECH LP0 citations51
US10513472B2Dec 24, 2019
Methods of producing propylene and ethylene
LYONDELL CHEMICAL TECH LP0 citations42
US9586881B2Mar 7, 2017
Production of propylene glycol monoalkyl ether
LYONDELL CHEMICAL TECH LP0 citations40
US9873648B2Jan 23, 2018
Oxidative methods of phosphorus removal from liquid hydrocarbons
LYONDELL CHEMICAL TECH LP0 citations36
US10513502B2Dec 24, 2019
Alkylene oxide separation system
LYONDELL CHEMICAL TECH LP0 citations33
ARCO CHEM TECH
13 patentsUS5026935AJun 25, 1991
Enhanced production of ethylene from higher hydrocarbons
ARCO CHEM TECH156 citations99
US5026936AJun 25, 1991
Enhanced production of propylene from higher hydrocarbons
ARCO CHEM TECH163 citations99
US5043522AAug 27, 1991
Production of olefins from a mixture of Cu+ olefins and paraffins
ARCO CHEM TECH146 citations96
US5993673ANov 30, 1999
Purification process
ARCO CHEM TECH21 citations92
US5192809AMar 9, 1993
Process for reclaiming a thermoset polymer
ARCO CHEM TECH33 citations92
US5254326AOct 19, 1993
Production of hydrogen peroxide
ARCO CHEM TECH13 citations74
US6583300B1Jun 24, 2003
Epoxidation system with fixed bed reactors
ARCO CHEM TECH7 citations72
US4988830AJan 29, 1991
Propylene oxide production
ARCO CHEM TECH7 citations72
US6512129B1Jan 28, 2003
Epoxidation process
ARCO CHEM TECH4 citations62
US5194067AMar 16, 1993
Recovery of hydrogen peroxide
ARCO CHEM TECH3 citations62
US5107001AApr 21, 1992
Propylene oxide production
ARCO CHEM TECH6 citations61
US6755979B2Jun 29, 2004
Peroxide impurities removal
ARCO CHEM TECH2 citations60
US6562987B1May 13, 2003
Method for highly exothermic epoxidation reactions
ARCO CHEM TECH0 citations52
ATLANTIC RICHFIELD CO
5 patentsUSRE35633EOct 14, 1997
Methane conversion process
ATLANTIC RICHFIELD CO59 citations96
USRE35632EOct 14, 1997
Methane conversion process
ATLANTIC RICHFIELD CO61 citations96
US4886932ADec 12, 1989
Thin bed cofeed reaction system for methane conversion
ATLANTIC RICHFIELD CO35 citations92
US4876409AOct 24, 1989
Thin bed cofeed reactors for methane conversion
ATLANTIC RICHFIELD CO36 citations89
US4801762AJan 31, 1989
Methane conversion process
ATLANTIC RICHFIELD CO13 citations82