Inventor

Leif O. Erickson

Inventor
River Falls, WI, US

Overview

20→
Patents
1980–2004
Patent span
Physics
Primary field (CPC G)

Patents· 20 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer44%
Y10TTechnical subjects covered by former us classification22%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables19%
B29CShaping or joining of plastics3%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts3%
B44CProducing decorative effects3%
LOC143%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1996Patents assigned to MINNESOTA MINING & MFG (6)· patent assignee history
1980Based in Maplewood, MN, US· patent location history
1986Based in Hudson, WI, US· patent location history
1995–2004Based in River Falls, WI, US· patent location history
1996–2004Patents assigned to IMATION CORP (9)· patent assignee history
2000Based in Riverfalls, WI, US· patent location history
2003–2004Patents assigned to 3M INNOVATIVE PROPERTIES CO (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IMATION CORP91996–2004
MINNESOTA MINING & MFG61980–1996
3M INNOVATIVE PROPERTIES CO52003–2004
Locations
LocationPatentsSpan
River Falls, WI, US161995–2004
Riverfalls, WI, US22000
Hudson, WI, US11986
Maplewood, Minnesota, US11980