Inventor

Gerald R. Franck

Inventor

St. Paul, MN, US

Overview

4→

Patents

1978–2006

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 4 as inventor

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

F01Pprimary

F01PCooling of machines or engines in general22%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application22%

B01DSeparation11%

B44FSpecial designs or pictures11%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers11%

G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light11%

Y10TTechnical subjects covered by former us classification11%

PatentTitleYear

6,995,843'Method of simulating a clear-coat and color-matching articles'2006 4,995,452'Filter-conditioner for motor cooling liquid'1991 4,444,247'Filter-conditioner for motor cooling liquid'1984 4,081,077'Compartmented package'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1991Patents assigned to MINNESOTA MINING & MFG (3)· patent assignee history

1978–1991Based in St. Paul, MN, US· patent location history

2006Patents assigned to 3M INNOVATIVE PROPERTIES CO (1)· patent assignee history

2006Based in Mendota Heights, MN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MINNESOTA MINING & MFG	3	1978–1991
3M INNOVATIVE PROPERTIES CO	1	2006

Locations

Location	Patents	Span
St. Paul, Minnesota, US	3	1978–1991
Mendota Heights, Minnesota, US	1	2006