Inventor

Craig F. Lamphere

Inventor

Woodbury, MN, US

Overview

10→

Patents

1983–2011

Patent span

Performing operations

Primary field (CPC B)

Patents· 10 as inventor

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

B24Dprimary

B24DTools for grinding, buffing or sharpening39%

B24BMachines, devices, or processes for grinding or polishing28%

G11BInformation storage based on relative movement between record carrier and transducer17%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers6%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h106%

PatentTitleYear

8,038,750'Structured abrasive with overlayer, and method of making and using the same'2011 7,410,413'Structured abrasive article and method of making and using the same'2008 7,278,904'Method of abrading a workpiece'2007 6,638,144'Method of cleaning glass'2003 6,155,910'Method and article for the production of optical quality surfaces on glass'2000 5,989,111'Method and article for the production of optical quality surfaces on glass'1999 5,876,268'Method and article for the production of optical quality surfaces on glass'1999 4,774,272'Composite sheet material for storage envelopes for magnetic recording media'1988 4,417,291'Recording diskette having flocked-fiber wiping fabric'1983 4,413,298'Diskette jacket'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1999Patents assigned to MINNESOTA MINING & MFG (4)· patent assignee history

1983Based in St. Paul, MN, US· patent location history

1988–2011Based in Woodbury, MN, US· patent location history

1999–2011Patents assigned to 3M INNOVATIVE PROPERTIES CO (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
3M INNOVATIVE PROPERTIES CO	6	1999–2011
MINNESOTA MINING & MFG	4	1983–1999

Locations

Location	Patents	Span
Woodbury, Minnesota, US	8	1988–2011
St. Paul, Minnesota, US	2	1983