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Howard L. Mitchell III
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Baton Rouge, LA, US
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last 30 patents
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Patent Grant
Catalysts from molybdenum polysulfide precursors, their preparation...
Patent number
4,542,121
Issue date
Sep 17, 1985
Exxon Research and Engineering Co.
Howard L. Mitchell
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Catalysts from molybdenum polysulfide precursors, their preparation...
Patent number
4,540,481
Issue date
Sep 10, 1985
Exxon Research and Engineering Co.
Willard H. Sawyer
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Phosphine and phosphonium compounds and catalysts
Patent number
4,522,932
Issue date
Jun 11, 1985
Exxon Research and Engineering Co.
Howard L. Mitchell
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Phosphine and phosphonium compounds and catalysts
Patent number
4,473,505
Issue date
Sep 25, 1984
Exxon Research and Engineering Co.
Howard L. Mitchell
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Organic salt compositions in extraction processes
Patent number
4,440,634
Issue date
Apr 3, 1984
Exxon Research and Engineering Co.
Howard L. Mitchell
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Catalysts from molybdenum polysulfide precursors and their preparation
Patent number
4,430,442
Issue date
Feb 7, 1984
Exxon Research and Engineering Co.
Willard H. Sawyer
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Organic salt compositions in extraction processes
Patent number
4,422,975
Issue date
Dec 27, 1983
Exxon Research and Engineering Co.
Howard L. Mitchell
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Liquid salt extraction of aromatics from process feed streams
Patent number
4,359,596
Issue date
Nov 16, 1982
Exxon Research and Engineering Co.
Kent A. Howard
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Catalysts for the conversion of relatively low molecular weight hyd...
Patent number
4,239,658
Issue date
Dec 16, 1980
Exxon Research and Engineering Co.
Howard L. Mitchell
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the conversion of relatively low molecular weight hydro...
Patent number
4,205,194
Issue date
May 27, 1980
Exxon Research and Engineering Co.
Howard L. Mitchell
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Catalysts for the conversion of relatively low molecular weight hyd...
Patent number
4,172,810
Issue date
Oct 30, 1979
Exxon Research and Engineering Co.
Howard L. Mitchell
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
High surface area alpha aluminas
Patent number
4,012,337
Issue date
Mar 15, 1977
Exxon Research and Engineering Company
Howard Lee Mitchell
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Iridium-containing catalysts
Patent number
3,969,221
Issue date
Jul 13, 1976
Exxon Research and Engineering Company
Howard Lee Mitchell
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Nickel-containing reforming catalyst and process
Patent number
3,956,107
Issue date
May 11, 1976
Exxon Research and Engineering Company
Howard Lee Mitchell
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Trimetallic hydrocarbon conversion catalyst
Patent number
3,933,622
Issue date
Jan 20, 1976
Exxon Research and Engineering Company
Howard Lee Mitchell
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL