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Inventor

Manley R. Johnston

Inventor
Mahtomedi, MN, US

Overview

4→
Patents
1977–1996
Patent span
Human necessities
Primary field (CPC A)

Patents· 4 as inventor

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

A61Fprimary
A61FFilters implantable into blood vessels33%
A61LMethods or apparatus for sterilising materials or objects in general22%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests22%
C09KMaterials for miscellaneous applications, not provided for elsewhere11%
Y10TTechnical subjects covered by former us classification11%
PatentTitleYear
5,489,300'Surgical method for implanting a corneal implant'19965,108,428'Corneal implants and manufacture and use thereof'19925,026,446'Method of manufacturing a disposable diaper having an abraded target strip'19914,011,063'Low density abrasive utilizing isocyanurate resin'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1996Patents assigned to MINNESOTA MINING & MFG (4)· patent assignee history
1977Based in St. Paul, MN, US· patent location history
1991Based in Paris, FR· patent location history
1992–1996Based in Mahtomedi, MN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MINNESOTA MINING & MFG41977–1996
Locations
LocationPatentsSpan
Mahtomedi, Minnesota, US21992–1996
Paris, FR11991
St. Paul, Minnesota, US11977