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Ralph C. Gatrone
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Argonne, IL, US
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last 30 patents
Information
Patent Grant
Grafted methylenediphosphonate ion exchange resins
Patent number
5,712,347
Issue date
Jan 27, 1998
Arch Development Corp.
Andrzej W. Trochimcznk
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Membrane extraction with thermodynamically unstable diphosphonic ac...
Patent number
5,678,242
Issue date
Oct 14, 1997
Arch Development Corporation
Earl Philip Horwitz
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Grafted methylenediphosphonate ion exchange resins
Patent number
5,618,851
Issue date
Apr 8, 1997
Arch Development Corp.
Andrzej W. Trochimcznk
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Phosphonic acid based ion exchange resins
Patent number
5,539,003
Issue date
Jul 23, 1996
University of Tennessee Research Corporation
E. Philip Horwitz
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Phosphonic acid based exchange resins
Patent number
5,449,462
Issue date
Sep 12, 1995
Arch Development Corp.
E. Philip Horwitz
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Extracting metal ions with diphosphonic acid, or derivative thereof
Patent number
5,332,531
Issue date
Jul 26, 1994
Arch Development Corporation
Earl P. Horwitz
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Phosphonic acid based ion exchange resins
Patent number
5,281,631
Issue date
Jan 25, 1994
Arch Development Corp.
E. Philip Horwitz
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method of purifying neutral organophosphorus extractants
Patent number
4,741,857
Issue date
May 3, 1988
The United States of America as represented by the United States Department o...
E. Philip Horwitz
C07 - ORGANIC CHEMISTRY