LexDanaLexDanabeta
Inventor

Mara E. Liepa

Inventor
St. Paul, MN, US

Overview

4→
Patents
1999–2002
Patent span
Performing operations
Primary field (CPC B)

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 sharpening36%
A46BBrushes18%
A46DManufacture of brushes18%
B29CShaping or joining of plastics18%
B29LIndexing scheme associated with subclass b29c, relating to particular articles9%
PatentTitleYear
6,352,471'Abrasive brush with filaments having plastic abrasive particles therein'20026,277,160'Abrasive article and method of making such article'20016,080,215'Abrasive article and method of making such article'20005,903,951'Molded brush segment'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999Patents assigned to MINNESOTA MINING & MFG (1)· patent assignee history
1999–2002Based in St. Paul, MN, US· patent location history
2000–2002Patents assigned to 3M INNOVATIVE PROPERTIES CO (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
3M INNOVATIVE PROPERTIES CO32000–2002
MINNESOTA MINING & MFG11999
Locations
LocationPatentsSpan
St. Paul, Minnesota, US41999–2002