Northfield, MN, United States of America

Northfield Freezing Systems, Inc.


USPTO Granted Patents = 2

Forward Citations = 36

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3 inventors (with patents filed for the assignee):

goldMedal Jack R Raum (1 out of 4 patents)

silverMedal Richard T Middleton (1 out of 1 patent)

bronzeMedal John Larson (1 out of 1 patent)


2 patents:

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#14 in Northfield, MN

#2,484 in Minnesota

#92,551 in US

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Northfield, MN, United States of America
Forward Citations = 36

3 inventors:

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