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For the Inventor, By the Inventor

Litchfield, MN, United States of America

H. F. Johnson, Inc.


USPTO Granted Patents = 1

Forward Citations = 7

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1 inventor (with patents filed for the assignee):

goldMedal Harlan F Johnson (1 out of 3 patents)


1 patent:

1. 4529085 - Self-cleaning and anti-bridging grain receiving and transporting device (1985-07-16),
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USPTO Data Jan 1 1976 - Jan 6 2026

1 Patents

#7 in Litchfield, MN

#3,503 in Minnesota

#133,943 in US

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Litchfield, MN, United States of America

H. F. Johnson, Inc.

Forward Citations = 7

1 inventor:

goldMedal Harlan F Johnson (1 out of 3 patents)

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