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Inventor

Yun-Feng Chang

Inventor
Houston, TX, US

Overview

50→
Patents
1977–2013
Patent span
Chemistry
Primary field (CPC C)

Patents· 50 as inventor

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

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry22%
C07CAcyclic or carbocyclic compounds19%
Y02PClimate change mitigation technologies in the production or processing of goods18%
C10GCracking hydrocarbon oils14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
C01BNon-metallic elements4%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds4%
C09DCoating compositions, e.g. paints, varnishes or lacquers3%
C08LCompositions of macromolecular compounds2%
Y10TTechnical subjects covered by former us classification2%
PatentTitleYear
8,524,967'Monoalkylated aromatic compound production'20138,357,830'Monoalkylated aromatic compound production'20138,247,629'Monoalkylated aromatic compound production'20127,947,621'Method of making and process for using molecular sieve catalyst'20117,914,760'Crystalline intergrowth material of silicoaluminophosphate having two intergrown phases'20117,816,575'Removal of catalyst fines from a reaction system'20107,772,337'Method of formulating a molecular sieve catalyst composition by controlling component addition'20107,767,871'Method of recovering crystalline material and compositions therefrom'20107,741,528'Method of separating condensed liquid from an olefin stream'20107,737,316'Method of flocculation and formulation of crystalline materials'20107,732,537'Methods addressing aging in flocculated molecular sieve catalysts for hydrocarbon conversion processes'20107,622,624'Crystalline intergrowth material, its synthesis and its use in the conversion of oxygenates to olefins'20097,563,358'Process for the production of benzene, toluene, and xylenes'20097,557,256'Molecular sieve catalyst composition, its making and use in conversion processes'20097,541,508'Molecular sieve catalyst composition, its making and use in conversion processes'20097,518,026'Catalyst and process for the conversion of oxygenates to olefins'20097,511,184'Molecular sieve catalyst composition, its making and use in conversion processes'20097,510,644'Zeolites and molecular sieves and the use thereof'20097,501,375'Molecular sieve catalyst composition, its making and use in conversion processes'20097,456,330'Molecular sieve catalyst composition, its making and use in conversion processes'20087,453,020'Molecular sieve catalyst composition, its making and use in conversion processes'20087,449,611'Molecular sieve catalyst composition, its making and use in conversion processes'20087,384,887'Attrition resistant molecular sieve catalysts'20087,358,412'Method of making molecular sieve catalyst'20087,329,625'Attrition resistant molecular sieve catalyst'20087,312,369'Attrition resistant molecular sieve catalyst, method of making and process for using'20077,301,065'Molecular-sieve catalyst composition, its making and use in conversion processes'20077,273,827'Molecular sieve catalyst composition, its production and use in conversion processes'20077,271,123'Molecular sieve catalyst composition, its making and use in conversion process'20077,241,713'Molecular sieve catalyst composition, its making and use in conversion processes'20077,223,896'Fines co-feed for maintaining efficient reactor hydrodynamics'20077,214,844'Molecular sieve catalyst compositions, its making and use in conversion processes'20077,160,831'Molecular sieve catalyst composition, its making and use in conversion processes'20077,122,500'Molecular sieve catalyst composition, its making and use in conversion processes'20067,071,136'Attrition resistant molecular sieve catalysts'20067,026,267'Molecular sieve catalyst composition, its production and use in conversion processes'20066,946,107'Conversion of nitrogen oxides in the presence of a catalyst supported on a mesh-like structure'20056,872,680'Molecular sieve catalyst composition, its making and use in conversion processes'20056,809,055'Zeolites and molecular sieves and the use thereof'20046,787,501'Molecular sieve catalyst composition, its making and use in conversion processes'20046,710,008'Method of making molecular sieve catalyst'20046,534,022'Conversion of nitrogen oxides in the presence of a catalyst supported on a mesh-like structure'20036,350,429'Method for making molecular sieves and novel molecular sieve compositions'20026,004,527'Method for making molecular sieves and novel molecular sieve compositions'19994,412,013'Expandable urethane sealant compositions'19834,386,173'Hot melt corrosion resistant compositions containing epoxy resins'19834,297,448'Coating composition of aminoplast, hydroxy polymers and vinylic monomers'19814,091,049'Powder coating compositions containing glycidyl ester copolymers and carboxyl terminated crosslinking agent'19784,085,260'Powder coating compositions with hydroxy containing acrylic copolymers-I and carboxylic acid or anhydride crosslinking agent'19784,002,699'Powder coating composition with hydroxy functional copolymer and amino functional crosslinking agent'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1983Patents assigned to FORD MOTOR CO (6)· patent assignee history
1977–1983Based in Plymouth, MI, US· patent location history
1999–2005Patents assigned to ABB LUMMUS GLOBAL INC (5)· patent assignee history
1999–2002Based in Chatham, NJ, US· patent location history
2003–2005Based in Randolph, NJ, US· patent location history
2004–2013Patents assigned to EXXONMOBIL CHEM PATENTS INC (38)· patent assignee history
2004–2013Based in Houston, TX, US· patent location history
2004–2009Based in Kemah, TX, US· patent location history
2012–2013Patents assigned to CHANG YUN-FENG (2)· patent assignee history
2012–2013Patents assigned to CLARK MICHAEL C (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
EXXONMOBIL CHEM PATENTS INC382004–2013
FORD MOTOR CO61977–1983
ABB LUMMUS GLOBAL INC51999–2005
CHANG YUN-FENGself22012–2013
CLARK MICHAEL C22012–2013
Locations
LocationPatentsSpan
Houston, Texas, US382004–2013
Plymouth, MI, US61977–1983
Kemah, Texas, US22004–2009
Randolph, New Jersey, US22003–2005
Chatham, New Jersey, US21999–2002