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William A. Welsh
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Clarksville, MD, US
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Patents Grants
last 30 patents
Information
Patent Grant
Inorganic hydrogel flatting agents
Patent number
6,696,375
Issue date
Feb 24, 2004
W. R. Grace & Co.-Conn.
William Alan Welsh
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Desiccation using polymer-bound desiccant beads
Patent number
5,879,764
Issue date
Mar 9, 1999
W. R. Grace & Co.-Conn.
Jia-Ni Chu
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information
Patent Grant
Siliceous oxide comprising an alkaline constituent
Patent number
5,858,909
Issue date
Jan 12, 1999
W. R. Grace & Co.-Conn.
William A. Welsh
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Aluminum phosphate composition with high pore volume and large pore...
Patent number
5,698,758
Issue date
Dec 16, 1997
W. R. Grace & Co.-Conn.
Klaus Rieser
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Aluminum phosphate composition with high pore volume and large pore...
Patent number
5,552,361
Issue date
Sep 3, 1996
W. R. Grace & Co.-Conn.
Klaus Rieser
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Dual phase adsorption and treatment of glyceride oils
Patent number
5,336,794
Issue date
Aug 9, 1994
W. R. Grace & Co.-Conn.
James N. Pryor
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Adsorptive removal of sulfur compounds from fatty materials
Patent number
5,298,638
Issue date
Mar 29, 1994
W. R. Grace & Co.-Conn.
Gabriella J. Toeneboehn
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
MPR process for treating glyceride oils, fatty chemicals and wax es...
Patent number
5,298,639
Issue date
Mar 29, 1994
W. R. Grace & Co.-Conn.
Gabriella J. Toeneboehn
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Modified caustic refining of glyceride oils for removal of soaps an...
Patent number
5,231,201
Issue date
Jul 27, 1993
W. R. Grace & Co.-Conn.
William A. Welsh
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Inorganic hydrogel flatting agents
Patent number
5,110,769
Issue date
May 5, 1992
W. R. Grace & Co.-Conn.
William A. Welsh
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Inorganic oxide sorbents for sulfur oxides
Patent number
5,002,742
Issue date
Mar 26, 1991
W. R. Grace & Co.-Conn.
Roger J. Lussier
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Organic acid-treated amorphous silicas for refining glyceride oils
Patent number
4,939,115
Issue date
Jul 3, 1990
W. R. Grace & Co.-Conn.
Perry M. Parker
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Method for refining glyceride oils using partially dried amorphous...
Patent number
4,880,574
Issue date
Nov 14, 1989
W. R. Grace & Co.-Conn.
William A. Welsh
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Adsorptive material for the removal of chlorophyll, color bodies an...
Patent number
4,877,765
Issue date
Oct 31, 1989
W. R. Grace & Co.
James N. Pryor
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for the removal of chlorophyll, color bodies and phospholip...
Patent number
4,781,864
Issue date
Nov 1, 1988
W. R. Grace & Co.-Conn.
James N. Pryor
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Method for refining glyceride oils using acid-treated amorphous silica
Patent number
4,734,226
Issue date
Mar 29, 1988
W. R. Grace & Co.
Perry M. Parker
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Adsorption of proteins from fluids
Patent number
4,684,530
Issue date
Aug 4, 1987
W. R. Grace & Co.
William A. Welsh
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Hydrocarbon conversion catalysts
Patent number
H222
Issue date
Mar 3, 1987
W. R. Grace & Co.
Grant C. Edwards
208 - Mineral oils: processes and products
Information
Patent Grant
Method for refining glyceride oils using amorphous silica
Patent number
4,629,588
Issue date
Dec 16, 1986
W. R. Grace & Co.
William A. Welsh
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Catalyst manufacture
Patent number
4,458,023
Issue date
Jul 3, 1984
W. R. Grace & Co.
William A. Welsh
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Hydrocracking catalyst
Patent number
4,456,693
Issue date
Jun 26, 1984
W. R. Grace & Co.
William A. Welsh
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Diesel exhaust catalyst
Patent number
4,303,552
Issue date
Dec 1, 1981
W. R. Grace & Co.
Michael V. Ernest
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
Information
Patent Application
INORGANIC HYDROGEL FLATTING AGENTS
Publication number
20020077242
Publication date
Jun 20, 2002
WILLIAM A. WELSH
C01 - INORGANIC CHEMISTRY