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For the Inventor, By the Inventor

Chippewa Falls, WI, United States of America

Premier Dies Corporation


USPTO Granted Patents = 3

% Expired Patents = 100.0

Forward Citations = 12

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3 inventors (with patents filed for the assignee):

goldMedal Robert L Druschel (2 out of 7 patents)

silverMedal Steven D Jonjak (2 out of 2 patents)

bronzeMedal Ronald Fraley (1 out of 1 patent)


3 patents:

1. 8858211 - Liquid coating die (2014-10-14),
2. 8268213 - Flexible lip extruder, and methods of extruding material (2012-09-18),
3. 7845927 - Flexible lip extruder, and methods (2010-12-07),
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USPTO Data Jan 1 1976 - Sep 22 2026

3 Patents

#5 in Chippewa Falls, WI

#1,480 in Wisconsin

#73,732 in US

Chippewa Falls, WI (US)
Chippewa Falls, WI, United States of America

Premier Dies Corporation

Forward Citations = 12

3 inventors:

goldMedal Robert L Druschel (2 out of 7 patents)

silverMedal Steven D Jonjak (2 out of 2 patents)

bronzeMedal Ronald Fraley (1 out of 1 patent)

Please report any incorrect information to [email protected]
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