Inventor
William A. Welsh
Inventor
Highland, MD, US
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry28%
C11BProducing, e.g. by pressing raw materials or by extraction from waste materials, refining or preserving fats, fatty substances, e.g. lanolin, fatty oils or waxes25%
C01BNon-metallic elements10%
B01DSeparation5%
C09DCoating compositions, e.g. paints, varnishes or lacquers5%
C09KMaterials for miscellaneous applications, not provided for elsewhere5%
C10GCracking hydrocarbon oils5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
C07KPeptides3%
C12HPasteurisation, sterilisation, preservation, purification, clarification or ageing of alcoholic beverages3%
PatentTitleYear
6,696,375'Inorganic hydrogel flatting agents'20045,879,764'Desiccation using polymer-bound desiccant beads'19995,858,909'Siliceous oxide comprising an alkaline constituent'19995,698,758'Aluminum phosphate composition with high pore volume and large pore diameter, process for its production and use thereof'19975,552,361'Aluminum phosphate composition with high pore volume and large pore diameter, process for its production and use thereof'19965,336,794'Dual phase adsorption and treatment of glyceride oils'19945,298,639'MPR process for treating glyceride oils, fatty chemicals and wax esters'19945,298,638'Adsorptive removal of sulfur compounds from fatty materials'19945,231,201'Modified caustic refining of glyceride oils for removal of soaps and phospholipids'19935,110,769'Inorganic hydrogel flatting agents'19925,002,742'Inorganic oxide sorbents for sulfur oxides'19914,939,115'Organic acid-treated amorphous silicas for refining glyceride oils'19904,880,574'Method for refining glyceride oils using partially dried amorphous silica hydrogels'19894,877,765'Adsorptive material for the removal of chlorophyll, color bodies and phospholipids from glyceride oils'19894,781,864'Process for the removal of chlorophyll, color bodies and phospholipids from glyceride oils using acid-treated silica adsorbents'19884,734,226'Method for refining glyceride oils using acid-treated amorphous silica'19884,684,530'Adsorption of proteins from fluids'1987H0000222'Hydrocarbon conversion catalysts'19874,629,588'Method for refining glyceride oils using amorphous silica'19864,458,023'Catalyst manufacture'19844,456,693'Hydrocracking catalyst'19844,303,552'Diesel exhaust catalyst'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–2004Patents assigned to GRACE W R & CO (21)· patent assignee history
1981Based in Clarksville, MD, US· patent location history
1984–1991Based in Fulton, MD, US· patent location history
1987Based in Rockville, MD, US· patent location history
1992–2004Based in Highland, MD, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GRACE W R & CO | 21 | 1981–2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Highland, Maryland, US | 10 | 1992–2004 |
| Fulton, Maryland, US | 10 | 1984–1991 |
| Rockville, Maryland, US | 1 | 1987 |
| Clarksville, Maryland, US | 1 | 1981 |