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Yumi Nakagawa
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Oakland, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Hydrocarbon conversion with zeolite SSZ-47
Patent number
6,540,903
Issue date
Apr 1, 2003
Chevron U.S.A. Inc.
Gregory S. Lee
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Zeolite ZSM-11 and a process for preparing zeolite ZSM-11 using a 3...
Patent number
6,444,191
Issue date
Sep 3, 2002
Chevron U.S.A. Inc.
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Zeolite SSZ-47
Patent number
6,348,183
Issue date
Feb 19, 2002
Chevron U.S.A., Inc.
Gregory S. Lee
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Zoelite SSZ-47
Patent number
6,290,922
Issue date
Sep 18, 2001
Chevron U.S.A. Inc.
Gregory S. Lee
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Zeolite SSZ-36
Patent number
6,218,591
Issue date
Apr 17, 2001
Chevron U.S.A. Inc.
Gregory S. Lee
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Zeolite SSZ-47
Patent number
6,156,290
Issue date
Dec 5, 2000
Chevron U.S.A. Inc.
Gregory S. Lee
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing zeolites using substituted-piperidinium cations
Patent number
6,086,848
Issue date
Jul 11, 2000
Chevron U.S.A. Inc.
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Pure phase titanium-containing zeolite having MEL structure, proces...
Patent number
5,968,474
Issue date
Oct 19, 1999
Chevron U.S.A. Inc.
Yumi Nakagawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Zeolite SSZ-43
Patent number
5,965,104
Issue date
Oct 12, 1999
Chevron U.S.A. Inc.
Gregory S. Lee
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Zeolite SSZ-39
Patent number
5,958,370
Issue date
Sep 28, 1999
Chevron U.S.A. Inc.
Stacey I. Zones
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Zeolite SSZ-36
Patent number
5,939,044
Issue date
Aug 17, 1999
Chevron U.S.A. Inc.
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for making zeolite SSZ-44
Patent number
5,911,968
Issue date
Jun 15, 1999
Chevron Chemical Company LLC
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Preparation of zeolites using organic template and amine
Patent number
5,785,947
Issue date
Jul 28, 1998
Chevron U.S.A. Inc.
Stacey I. Zones
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing medium pore size zeolites using neutral amines
Patent number
5,707,600
Issue date
Jan 13, 1998
Chevron U.S.A. Inc.
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing zeolites having MTT crystal structure using s...
Patent number
5,707,601
Issue date
Jan 13, 1998
Chevron U.S.A. Inc.
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Zeolite SSZ-44
Patent number
5,683,572
Issue date
Nov 4, 1997
Chevron U.S.A. Inc.
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Zeolite ZSM-11 and a process for preparing zeolite ZSM-11 using a 3...
Patent number
5,645,812
Issue date
Jul 8, 1997
Chevron U.S.A. Inc.
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
High-silica zeolite SSZ-37 and methods of making and using same
Patent number
5,641,393
Issue date
Jun 24, 1997
Chevron U.S.A. Inc.
Yumi Nakagawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Zeolite SSZ-44
Patent number
5,580,540
Issue date
Dec 3, 1996
Chevron U.S.A. Inc.
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing crystalline aluminophosphate materials using a...
Patent number
5,501,848
Issue date
Mar 26, 1996
Chevron U.S.A. Inc.
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing crystalline materials using heterobridged aza-...
Patent number
5,425,933
Issue date
Jun 20, 1995
Chevron Research and Technology Company, a division of Chevron U.S.A. Inc.
Yumi Nakagawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Hydrocarbon conversion process using zeolite SSZ-35
Patent number
5,391,287
Issue date
Feb 21, 1995
Chevron Research and Technology Company
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Preparation of zeolites using low silica/alumina zeolites as a sour...
Patent number
5,340,563
Issue date
Aug 23, 1994
Chevron Research and Technology Company
Stacey I. Zones
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Zeolite SSZ-35
Patent number
5,316,753
Issue date
May 31, 1994
Chevron Research and Technology Company
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing crystalline materials using aza-polycyclic tem...
Patent number
5,281,407
Issue date
Jan 25, 1994
Chevron Research and Technology Company
Yumi Nakagawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing molecular sieves using 9-azabicyclo [3.3.1] n...
Patent number
5,273,736
Issue date
Dec 28, 1993
Chevron Research and Technology Company
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing molecular sieves using 3,7-diazabicyclo[3.3.1]
Patent number
5,271,921
Issue date
Dec 21, 1993
Chevron Research and Technology Company
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing molecular sieves using a sparteine template
Patent number
5,271,922
Issue date
Dec 21, 1993
Chevron Research and Technology Company
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing molecular sieves using a 1,3,3,8,8-pentamethy...
Patent number
5,268,161
Issue date
Dec 7, 1993
Chevron Research and Technology Company
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Zeolite SSZ-37
Patent number
5,254,514
Issue date
Oct 19, 1993
Chevron Research and Technology Company
Yumi Nakagawa
C01 - INORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Zeolite SSZ-47
Publication number
20010027935
Publication date
Oct 11, 2001
Gregory S. Lee
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Zeolite SSZ-47
Publication number
20010000323
Publication date
Apr 19, 2001
Gregory S. Lee
C01 - INORGANIC CHEMISTRY