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Battery separator
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Patent number 5,389,433
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Issue date Feb 14, 1995
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W. R. Grace & Co.-Conn.
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Victor S. C. Chang
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H01 - BASIC ELECTRIC ELEMENTS
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Battery separator
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Patent number 5,389,463
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Issue date Feb 14, 1995
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W. R. Grace & Co.-Conn.
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Victor S. Chang
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H01 - BASIC ELECTRIC ELEMENTS
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Battery separator
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Patent number 5,362,581
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Issue date Nov 8, 1994
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W. R. Grace & Co.-Conn.
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Victor S. Chang
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H01 - BASIC ELECTRIC ELEMENTS
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Battery separator
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Patent number 5,362,582
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Issue date Nov 8, 1994
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W. R. Grace & Co.-Conn.
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Victor S. Chang
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H01 - BASIC ELECTRIC ELEMENTS
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Corrosion control
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Patent number 5,022,926
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Issue date Jun 11, 1991
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W. R. Grace & Co.-Conn.
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Robert P. Kreh
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Corrosion inhibition
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Patent number 4,935,205
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Issue date Jun 19, 1990
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W. R. Grace & Co.-Conn.
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Robert P. Kreh
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Battery separator
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Patent number 4,789,609
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Issue date Dec 6, 1988
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W. R. Grace & Co.-Conn.
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Geneva Ambrose-Ritchey
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H01 - BASIC ELECTRIC ELEMENTS
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Cathodic electrode
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Patent number 4,731,310
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Issue date Mar 15, 1988
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W. R. Grace & Co.
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Menahem Anderman
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H01 - BASIC ELECTRIC ELEMENTS
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Battery separator
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Patent number 4,731,304
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Issue date Mar 15, 1988
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W. R. Grace & Co.
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Joseph T. Lundquist
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H01 - BASIC ELECTRIC ELEMENTS
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Composite cathodic electrode
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Patent number 4,654,281
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Issue date Mar 31, 1987
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W. R. Grace & Co.
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Menahem Anderman
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H01 - BASIC ELECTRIC ELEMENTS
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Battery separator
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Patent number 4,650,730
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Issue date Mar 17, 1987
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W. R. Grace & Co.
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Joseph T. Lundquist
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H01 - BASIC ELECTRIC ELEMENTS
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Battery separator
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Patent number 4,434,215
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Issue date Feb 28, 1984
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W. R. Grace & Co.
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Walter R. Wszolek
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Battery separator
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Patent number 4,330,602
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Issue date May 18, 1982
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W. R. Grace & Co.
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Dennis D. O'Rell
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H01 - BASIC ELECTRIC ELEMENTS
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Battery separator
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Patent number 4,327,164
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Issue date Apr 27, 1982
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W. R. Grace & Co.
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Stewart C. Feinberg
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H01 - BASIC ELECTRIC ELEMENTS
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Battery interseparator
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Patent number 4,264,691
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Issue date Apr 28, 1981
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W. R. Grace & Co.
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Dennis D. O'Rell
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H01 - BASIC ELECTRIC ELEMENTS
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Battery separator
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Patent number 4,224,393
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Issue date Sep 23, 1980
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W. R. Grace & Co.
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Stewart C. Feinberg
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H01 - BASIC ELECTRIC ELEMENTS
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