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Yun Wen Chang

from Houston, TX
Age ~48
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Also known as:
Yun W Chang, Yun C Chang, Yunwen W Chang, Mike Y Chang, Myun Wen Chang, Myun W Chang, Wen Chang Yun, Chung Chang Yun
Related to:
Jed Shen, 43Chiou M Miller, 76Kitty W Shen, 67Cathy H Chang, 61Chang YunYuan C Chang, 69Hsiang Chang Yun, 46Daniel Shen, 38Shidon Chang Don, 74
Connected to:
Aeron Chang, 46Alma L Chang, 58Andrew H Chang, 52Anna Chang, 64Ariene J Chang, 47Arleta Chang, 60Barbie S Chang, 39Belinda Chang, 49Benny C Chang, 76Bing T Chang, 74

Yun Chang Phones & Addresses

  • Houston, TX
  • Dallas, TX
  • Richardson, TX

Professional Records

Medicine Doctors

Yun Chang Photo 1

Dr. Yun T Chang - MD (Doctor of Medicine)

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Specialties:
Internal Medicine
Certifications:
Internal Medicine, 1999
Languages:
English
Korean
Education:
Medical School
University Of South Florida College Of Medicine
Graduated: 1994

Lawyers & Attorneys

Yun Chang Photo 2

Yun Chang - Lawyer

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Office:
Top Team International Patent & Trademark Office
Specialties:
Electrical Engineering
Electronics Engineering
Telecommunication
ISLN:
917411500
University:
University of Auckland, New Zealand; University of Auckland, New Zealand; University of New South Wales, Australia; University of New South Wales, Australia

Business Records

Name / Title
Company / Classification
Phones & Addresses
Yun Nan Chang
Director, President
GOLDEN AMERICA ENTERPRISES LLC
6100 Corporate Dr STE 588, Houston, TX 77036
320 E Marshall St, San Gabriel, CA 91776
Yun Chang
Director, Secretary
ESH INC
Business Services at Non-Commercial Site · Nonclassifiable Establishments
8926 Concho St, Houston, TX 77036
4607 Frst Home Dr, Missouri City, TX 77459
Yun Chang
Director
ICL, L.P
Business Services at Non-Commercial Site · Nonclassifiable Establishments
8926 Concho St, Houston, TX 77036
4607 Frst Home Dr, Missouri City, TX 77459
8962 Concho St, Houston, TX 77036
Yun Long Chang
President, Director
GRAND WORLD INC
3306 W Walnut St STE 101, Garland, TX 75042
2460 Walnut Hl Ln, Dallas, TX 75229
15215 Berry Trl #1004, Dallas, TX 75248
Yun Chang
DIRECTOR, Director
ICL INC
8926 Concho St, Houston, TX 77036
8962 Concho St, Houston, TX 77036
Yun Long Chang
Secretary, Director
GREAT WORLD CORPORATION
3306 W Walnut St STE 101, Garland, TX 75042
4002 Belt Line Rd, Addison, TX 75001
15215 Berry Trl #1004, Dallas, TX 75248

Publications

Us Patents

Molecular Sieve Catalyst Composition, Its Making And Use In Conversion Processes

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US Patent:
7449611, Nov 11, 2008
Filed:
Apr 19, 2005
Appl. No.:
11/109584
Inventors:
Yun Feng Chang - Houston TX, US
Stephen Neil Vaughn - Kingwood TX, US
Assignee:
ExxonMobil Chemical Patents Inc. - Houston TX
International Classification:
C07C 1/00
US Classification:
585640, 585639
Abstract:
A catalyst composition that comprises an over flocculated molecular sieve and a phosphorous compound and, optionally, a non-over flocculated molecular sieve. A method of preparing a catalyst composition that comprises mixing an over flocculated molecular sieve and a phosphorous compound and, optionally, a non-over flocculated molecular sieve.

Molecular Sieve Catalyst Composition, Its Making And Use In Conversion Processes

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US Patent:
7453020, Nov 18, 2008
Filed:
Apr 19, 2005
Appl. No.:
11/109586
Inventors:
Yun Feng Chang - Houston TX, US
Luc R. M. Martens - Meise, BE
Stephen Neil Vaughn - Kingwood TX, US
Assignee:
ExxonMobil Chemical Patents Inc. - Houston TX
International Classification:
C07C 1/00
US Classification:
585640, 585639
Abstract:
A catalyst composition that comprises an over flocculated molecular sieve and optionally, a phosphorous compound and, optionally, a non-over flocculated molecular sieve. A method of preparing a catalyst composition that comprises mixing an over flocculated molecular sieve and optionally, a phosphorous compound and, optionally, a non-over flocculated molecular sieve.

Molecular Sieve Catalyst Composition, Its Making And Use In Conversion Processes

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US Patent:
7456330, Nov 25, 2008
Filed:
Apr 19, 2005
Appl. No.:
11/109397
Inventors:
Yun Feng Chang - Houston TX, US
Assignee:
ExxonMobil Chemical Patents Inc. - Houston TX
International Classification:
C07C 1/20
US Classification:
585638, 585639, 585640, 585310, 585324, 585326, 502327, 502329
Abstract:
A catalyst composition that comprises a non-over flocculated molecular sieve and an over flocculated molecular sieve. A method of preparing a catalyst composition that comprises combining a non-over flocculated molecular sieve and an over flocculated molecular sieve.

Crystalline Intergrowth Material, Its Synthesis And Its Use In The Conversion Of Oxygenates To Olefins

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US Patent:
7622624, Nov 24, 2009
Filed:
Mar 4, 2005
Appl. No.:
11/072830
Inventors:
Machteld M. Mertens - Boortmeerbeek, BE
An Verberckmoes - Serskamp, BE
Marcel J. Janssen - Kessel-Lo, BE
Yun Feng Chang - Houston TX, US
Luc R. M. Martens - Melse, BE
Stephen Neil Vaughn - Kingwood TX, US
Kenneth Ray Clem - Humble TX, US
Wilfried J. Mortier - Kessel-Lo, BE
Assignee:
ExxonMobil Chemical Patents Inc. - Houston TX
International Classification:
C07C 1/00
C01B 37/08
US Classification:
585640, 585639, 423306, 423DIG 30, 502214
Abstract:
A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIFFaX analysis, the second intergrown phase has an AEI/CHA ratio of about 30/70 to about 55/45 as determined by DIFFaX analysis and said molecular sieve has a silica to alumina molar ratio (Si/Al) from about 0. 13 to about 0. 24.

Crystalline Intergrowth Material Of Silicoaluminophosphate Having Two Intergrown Phases

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US Patent:
7914760, Mar 29, 2011
Filed:
Oct 8, 2009
Appl. No.:
12/576062
Inventors:
Machteld M. Mertens - Boortmeerbeek, BE
An Verberckmoes - Serskamp, BE
Marcel J. Janssen - Kessel-Lo, BE
Yun Feng Chang - Houston TX, US
Luc R. M. Martens - Melae, BE
Stephen Neil Vaughn - Kingwood TX, US
Kenneth Ray Clem - Humble TX, US
Wilfried J. Mortier - Kessel-Lo, BE
Assignee:
ExxonMobil Chemical Patents Inc. - Houston TX
International Classification:
C01B 25/36
C01B 25/45
B01J 21/12
B01J 27/18
B01J 27/182
US Classification:
423305, 4233281, 4233282, 423306, 423600, 502214, 502238
Abstract:
A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIFFaX analysis, the second intergrown phase has an AEI/CHA ratio of about 30/70 to about as determined by DIFFaX analysis and said molecular sieve has a silica to alumina molar ratio (Si/Al) from about 0. 13 to about 0. 24.

Processes For Formulating Catalyst Compositions Having Desirable Particle Size Characteristics

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US Patent:
20050054516, Mar 10, 2005
Filed:
Aug 31, 2004
Appl. No.:
10/930284
Inventors:
Stephen Vaughn - Kingwood TX, US
Yun Chang - Houston TX, US
S. Mack - Clemson SC, US
International Classification:
B01J029/06
US Classification:
502064000
Abstract:
The present invention provides various processes for selectively removing undesirably sized catalyst particles from a catalyst synthesis system. In one embodiment, a slurry is formed containing a molecular sieve, a matrix material, a slurring agent, and optionally a binder. At least a portion of the slurry is dried to produce a first catalyst mixture. At least a portion of catalyst particles are selectively removed from the first catalyst mixture based on their size. The selective removal of particles preferably occurs in a counter-flow cyclone separator. By selectively removing undesirably-sized catalyst particles from the formulated catalyst mixture, desirable fluidization and catalytic activity characteristics can be realized in an OTO reaction system.
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Yun Wen Chang from Houston, TX, age ~48 Get Report