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Inventor

John T. Wallace

Inventor
Mendota Heights, MN, US

Overview

4→
Patents
2003–2010
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.

B24Dprimary
B24DTools for grinding, buffing or sharpening30%
C09KMaterials for miscellaneous applications, not provided for elsewhere30%
C04BLime, magnesia20%
E21BEarth or rock drilling10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
7,845,409'Low density proppant particles and use thereof'20106,913,824'Method of making an agglomerate particle'20056,620,214'Method of making ceramic aggregate particles'20036,521,004'Method of making an abrasive agglomerate particle'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2010Patents assigned to 3M INNOVATIVE PROPERTIES CO (4)· patent assignee history
2003–2010Based in Mendota Heights, MN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
3M INNOVATIVE PROPERTIES CO42003–2010
Locations
LocationPatentsSpan
Mendota Heights, Minnesota, US42003–2010