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Inventor

Ralph A. Polasky

Inventor
Ripon, WI, US

Overview

3→
Patents
1991–1993
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C02Fprimary
C02FTreatment of water, waste water, sewage, or sludge75%
B01DSeparation25%
PatentTitleYear
5,225,078'Pour-through pitcher filter'19935,180,491'Apparatus for removal of iron from drinking water'19935,061,367'Water purifying filter device'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1993Patents assigned to AMETEK INC (3)· patent assignee history
1991–1993Based in Ripon, WI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AMETEK INC31991–1993
Locations
LocationPatentsSpan
Ripon, WI, US31991–1993