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Inventor

Lennart Westman

Inventor
Grycksbo, SE

Overview

2→
Patents
1982–2004
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.

D21Fprimary
D21FPaper-making machines50%
D21CProduction of cellulose by removing non-cellulose substances from cellulose-containing materials25%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management25%
PatentTitleYear
6,718,654'Device and method in connection with the manufacturing of paper or cardboard'20044,362,600'Use of polyalkylene oxides for the separation of cellulose fibres'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982Patents assigned to CASCO AB (1)· patent assignee history
1982Based in Saltsjo-Boo, SE· patent location history
2004Patents assigned to STORA KOPPARBERGS BERGSLAGS AB (1)· patent assignee history
2004Based in Grycksbo, SE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CASCO AB11982
STORA KOPPARBERGS BERGSLAGS AB12004
Locations
LocationPatentsSpan
Grycksbo, SE12004
Saltsjo-Boo, SE11982