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Inventor

Warren Gehl

Inventor
Minneapolis, MN, US

Overview

2→
Patents
1981–1986
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

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

B01Dprimary
B01DSeparation67%
Y10TTechnical subjects covered by former us classification33%
PatentTitleYear
4,600,420'Filter with integral structural framework'19864,304,580'Air cleaner with suspended cartridge'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1986Patents assigned to DONALDSON CO INC (2)· patent assignee history
1981Based in Richfield, MN, US· patent location history
1986Based in Minneapolis, MN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DONALDSON CO INC21981–1986
Locations
LocationPatentsSpan
Minneapolis, Minnesota, US11986
Richfield, Minnesota, US11981