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Inventor

Walter A. Yarbrough

Inventor
State College, PA, US

Overview

5→
Patents
1989–1996
Patent span
Chemistry
Primary field (CPC C)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C01Fprimary
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals19%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds19%
C04BLime, magnesia19%
C09KMaterials for miscellaneous applications, not provided for elsewhere19%
B24DTools for grinding, buffing or sharpening13%
B24BMachines, devices, or processes for grinding or polishing6%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
5,527,368'Coated abrasives with rapidly curable adhesives'19965,514,631'Alumina sol-gel fiber'19965,395,407'Abrasive material and method'19955,383,945'Abrasive material and method'19954,867,760'Coated abrasive'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1996Patents assigned to NORTON CO (5)· patent assignee history
1989Based in Greenwich, NY, US· patent location history
1995–1996Based in State College, PA, US· patent location history
1996Based in Stormstown, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NORTON CO51989–1996
Locations
LocationPatentsSpan
State College, Pennsylvania, US31995–1996
Stormstown, Pennsylvania, US11996
Greenwich, New York, US11989