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Inventor

David J. Schreifels

Inventor
Vadnais Heights, MN, US

Overview

2→
Patents
1997–2004
Patent span
Textiles
Primary field (CPC D)

Patents· 2 as inventor

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

C09Dprimary
C09DCoating compositions, e.g. paints, varnishes or lacquers20%
B05CApparatus for applying fluent materials to surfaces, in general10%
B05DProcesses for applying fluent materials to surfaces, in general10%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds10%
D06BTreating textile materials using liquids, gases or vapours10%
D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials10%
D06NWall, floor, or like covering materials, e.g. linoleum, oilcloth, artificial leather, roofing felt, consisting of a fibrous web coated with a layer of macromolecular material10%
D21HPulp compositions10%
G03GElectrography10%
PatentTitleYear
6,676,754'Coating apparatus and methods of applying a polymer coating'20045,652,078'Release layer for photoconductors'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997Patents assigned to MINNESOTA MINING & MFG (1)· patent assignee history
1997–2004Based in Vadnais Heights, MN, US· patent location history
2004Patents assigned to 3M INNOVATIVE PROPERTIES CO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
3M INNOVATIVE PROPERTIES CO12004
MINNESOTA MINING & MFG11997
Locations
LocationPatentsSpan
Vadnais Heights, Minnesota, US21997–2004