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Inventor

Per-Olof Lofgren

Inventor
Vallsta, SE

Overview

3→
Patents
1995–1999
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

A01Gprimary
A01GHorticulture29%
B27BSaws for wood or similar material29%
B23DPlaning14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
Y10TTechnical subjects covered by former us classification14%
PatentTitleYear
6,006,629'Automatic chain sharpening device mounted on a chain saw'19995,797,187'Chain saw guide bar having dye-emitting nozzles'19985,426,854'Chain saw guide bar with liquid spray device'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–1999Patents assigned to SANDVIK AB (3)· patent assignee history
1995–1999Based in Vallsta, SE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SANDVIK AB31995–1999
Locations
LocationPatentsSpan
Vallsta, SE31995–1999