Minneapolis, MN, United States of America

Cardinal Insulated Glass Co.


USPTO Granted Patents = 2

Forward Citations = 65

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2 inventors (with patents filed for the assignee):

goldMedal Roger D O'Shaughnessy (2 out of 19 patents)

silverMedal Renato A Lizardo (1 out of 1 patent)


2 patents:

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#538 in Minneapolis, MN

#2,484 in Minnesota

#92,554 in US

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Minneapolis, MN, United States of America
Forward Citations = 65

2 inventors:

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