Inventor

Per-Gustaf Mellgren

Inventor

Pointe-Claire, CA

Overview

1978–1989

Patent span

Human necessities

Primary field (CPC A)

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

A01Gprimary

A01GHorticulture45%

A01DHarvesting9%

B60GVehicle suspension arrangements9%

B62DMotor vehicles9%

D06BTreating textile materials using liquids, gases or vapours9%

F26BDrying solid materials or objects by removing liquid therefrom9%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to KARRER SYSTEM AG (1)· patent assignee history

1978Based in Montreal, CA· patent location history

1983Patents assigned to KARRER FRITZ (1)· patent assignee history

1983Patents assigned to MELLGREN PER G (1)· patent assignee history

1983Patents assigned to PEDRETTI ALBERTO (1)· patent assignee history

1983–1988Based in Pointe-Claire, CA· patent location history

1984–1989Patents assigned to FOREST ENG RES (5)· patent assignee history

1984–1987Based in Beaconsfield, CA· patent location history

1989Based in Kirkland, CA· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations