Inventor

Spencer B. Larson

Inventor

Newport, MN, US

Overview

1977–1994

Patent span

Performing operations

Primary field (CPC B)

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

A47Lprimary

A47LDomestic washing or cleaning24%

B01FMixing, e.g. dissolving, emulsifying or dispersing24%

Y10TTechnical subjects covered by former us classification12%

B05BSpraying apparatus6%

B67DDispensing, delivering or transferring liquids, not otherwise provided for6%

C11DDetergent compositions6%

D06FLaundering, drying, ironing, pressing or folding textile articles6%

G01NInvestigating or analysing materials by determining their chemical or physical properties6%

G05DSystems for controlling or regulating non-electric variables6%

LOCD16%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1977–1986Patents assigned to ECONOMICS LAB (4)· patent assignee history

1977–1978Based in South St. Paul, MN, US· patent location history

1984–1986Based in Newport, MN, US· patent location history

1988–1994Patents assigned to ECOLAB INC (2)· patent assignee history

1988Based in Cottage Grove, MN, US· patent location history

1994Based in Lilydale, MN, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ECONOMICS LAB	4	1977–1986
ECOLAB INC	2	1988–1994

Locations