Inventor

John Di-Yi Ou

Inventor

Houston, TX, US

Overview

1990–2018

Patent span

Chemistry

Primary field (CPC C)

Patents· 71 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Cprimary

C07CAcyclic or carbocyclic compounds36%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry21%

Y02PClimate change mitigation technologies in the production or processing of goods15%

C10GCracking hydrocarbon oils14%

B01DSeparation4%

C04BLime, magnesia2%

C01BNon-metallic elements2%

C01GCompounds containing metals not covered by subclasses c01d or c01f1%

C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds1%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests1%

PatentTitleYear

10,093,598Xylene separation process2018 9,783,460'Process for converting oxygenates to aromatic hydrocarbons'2017 9,725,378'Paraxylene separation process'2017 9,719,033'Energy efficient processes for xylenes production'2017 9,469,578'Energy efficient processes for xylenes production'2016 9,457,292'Paraxylene production process and apparatus'2016 9,434,661'Phenol removal in paraxylene recovery process'2016 9,416,072'Selective hydrogenation of styrene to ethylbenzene'2016 9,353,024'Selective hydrogenation of styrene to ethylbenzene'2016 9,321,029'Styrene removal in paraxylene recovery process'2016 9,309,169'Process for the production of purified xylene isomers'2016 9,266,794'Xylene isomerization process and catalyst therefor'2016 9,205,401'Phenol removal in paraxylene recovery process'2015 9,193,645'Xylene isomerization process and catalyst therefor'2015 9,181,147'Process for the production of xylenes and light olefins'2015 9,156,749'Styrene removal in paraxylene recovery process'2015 9,012,711'Phenol removal in paraxylene recovery process'2015 9,006,506'Alkylation process'2015 8,716,541'Paraxylene production process and apparatus'2014 8,697,929'Xylene isomerization process and catalyst therefor'2014 8,692,044'Process for producing para-xylene'2014 8,569,559'Paraxylene production process and apparatus'2013 8,541,639'Process for producing para-xylene'2013 8,344,197'Production of para-xylene by the methylation of benzene and/or toluene'2013 8,273,934'Process for producing para-xylene'2012 7,902,414'Para-xylene production process employing in-situ catalyst selectivation'2011 7,892,323'Hydrogen management in petrochemical process units'2011 7,867,379'Production of an upgraded stream from steam cracker tar by ultrafiltration'2011 7,700,816'Catalytic conversion of oxygenates to olefins'2010 7,683,233'Process for producing para-xylene'2010 7,626,065'Process for producing para-xylene'2009 7,563,358'Process for the production of benzene, toluene, and xylenes'2009 7,550,637'Catalyst and process for selective hydrogenation'2009 7,462,751'Catalyst and process for selective hydrogenation'2008 7,439,412'Process for producing para-xylene'2008 7,326,821'Removal of oxygenate from an olefin stream'2008 7,270,792'Process for producing para-xylene'2007 7,227,047'Butadiene and isobutylene removal from olefinic streams'2007 7,220,700'Catalyst and process for selective hydrogenation'2007 7,220,701'Catalyst and process for selective hydrogenation'2007 7,199,273'Selective hydrogenation of alkynes and/or diolefins'2007 7,153,807'Catalysts for selective hydrogenation of alkynes and alkadienes'2006 7,145,051'Combined oxydehydrogenation and cracking catalyst for production of olefins'2006 7,125,817'Combined cracking and selective hydrogen combustion for catalytic cracking'2006 7,122,494'Combined cracking and selective hydrogen combustion for catalytic cracking'2006 7,122,495'Combined cracking and selective hydrogen combustion for catalytic cracking'2006 7,122,492'Combined cracking and selective hydrogen combustion for catalytic cracking'2006 7,122,493'Combined cracking and selective hydrogen combustion for catalytic cracking'2006 7,102,051'Treatment of molecular sieves with silicon containing compounds'2006 7,087,794'Oxygenate conversion in the presence of highly unsaturated compounds'2006 7,038,097'Dual bed process using two different catalysts for selective hydrogenation of acetylene and dienes'2006 6,987,208'Process for removing oxygenates from an olefinic stream'2006 6,878,855'Process for producing para-xylene'2005 6,841,510'Treatment of molecular sieves with silicon containing compounds'2005 6,717,025'Process for removing oxygenates from an olefinic stream'2004 6,613,708'Catalyst selectivation'2003 6,489,527'Process for improving purity of para-xylene product'2002 6,459,006'Selective methylation to para-xylene using fuel syngas'2002 6,388,156'Direct selective synthesis of para-xylene by reacting an aromatic compound with a methylating agent formed from CO, Co2 and H2 '2002 6,376,733'Process for production of paraxylene'2002 6,069,288'Process for selectively separating hydrogen, or both hydrogen and carbon monoxide from olefinic hydrocarbons'2000 6,060,633'Supported Lewis acid catalysts derived from superacids useful for hydrocarbon conversion reactions'2000 5,952,541'Method of loading hydrogen halide onto an adsorbent to enable removal of lead impurities from liquid hydrocarbons'1999 5,756,873'Design for aromatics alkylation'1998 5,463,167'Mercury removal by dispersed-metal adsorbents'1995 5,442,040'Extraction of selection hydrocarbons from a hydrocarbon stream using a carbon adsorbent'1995 5,208,367'Process for recovery of vinyl acetate'1993 5,167,797'Removal of sulfur contaminants from hydrocarbons using N-halogeno compounds'1992 5,120,881'Removal of nitrogenous components of a hydrocarbon feedstream'1992 5,107,061'Removal of organochlorides from hydrocarbon feed streams'1992 4,961,881'Process for separating triglycerides and regenerating absorbent used in said separation process'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Based in Naperville, IL, US· patent location history

1992–2000Patents assigned to EXXON CHEMICAL PATENTS INC (8)· patent assignee history

1992–2018Based in Houston, TX, US· patent location history

2002–2016Patents assigned to EXXONMOBIL CHEM PATENTS INC (48)· patent assignee history

2012–2015Patents assigned to OU JOHN DI-YI (6)· patent assignee history

2013–2015Patents assigned to ZHENG XIAOBO (3)· patent assignee history

2016–2018Patents assigned to EXXONMOBIL CHEMICAL PATENTS INC (8)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EXXONMOBIL CHEM PATENTS INC	48	2002–2016
EXXON CHEMICAL PATENTS INC	8	1992–2000
EXXONMOBIL CHEMICAL PATENTS INC	8	2016–2018
OU JOHN DI-YIself	6	2012–2015
ZHENG XIAOBO	3	2013–2015

Locations

Location	Patents	Span
Houston, Texas, US	70	1992–2018
Naperville, Illinois, US	1	1990