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Inventor

James L. Gibb

Inventor
Woodbury, MN, US

Overview

4→
Patents
1987–1990
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

C04Bprimary
C04BLime, magnesia25%
C09KMaterials for miscellaneous applications, not provided for elsewhere25%
E21BEarth or rock drilling25%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
4,944,905'Particulate ceramic useful as a proppant'19904,923,714'Novolac coated ceramic particulate'19904,869,960'Epoxy novolac coated ceramic particulate'19894,680,230'Particulate ceramic useful as a proppant'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1990Patents assigned to MINNESOTA MINING & MFG (4)· patent assignee history
1987–1990Based in Woodbury, MN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MINNESOTA MINING & MFG41987–1990
Locations
LocationPatentsSpan
Woodbury, Minnesota, US41987–1990