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For the Inventor, By the Inventor

Geneva, IL, United States of America

Asphalt Product Technologies


USPTO Granted Patents = 3

Forward Citations = 23

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3 inventors (with patents filed for the assignee):

goldMedal Robert E Farnham (3 out of 6 patents)

silverMedal Fredric W Prill (1 out of 6 patents)

bronzeMedal Frederic W Prill (1 out of 1 patent)


3 patents:

1. 5294197 - Asphalt manufacturing assembly (1994-03-15),
2. 5272833 - Soil remediation apparatus and method for same (1993-12-28),
3. 5103687 - Self-adjusting trunnion assembly (1992-04-14),
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USPTO Data Jan 1 1976 - Jan 20 2026

3 Patents

#10 in Geneva, IL

#3,370 in Illinois

#72,234 in US

Geneva, IL (US)
Geneva, IL, United States of America

Asphalt Product Technologies

Forward Citations = 23

3 inventors:

goldMedal Robert E Farnham (3 out of 6 patents)

silverMedal Fredric W Prill (1 out of 6 patents)

bronzeMedal Frederic W Prill (1 out of 1 patent)

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