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For the Inventor, By the Inventor

Denver, CO, United States of America

K-fuel Partnership


USPTO Granted Patents = 2

Forward Citations = 15

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1 inventor (with patents filed for the assignee):

goldMedal Edward Koppelman (2 out of 16 patents)


2 patents:

1. 5071447 - Apparatus and process for steam treating carbonaceous material (1991-12-10),
2. 4728339 - Multiple hearth apparatus and process for thermal treatment of (1988-03-01),
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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#377 in Denver, CO

#2,277 in Colorado

#92,551 in US

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Denver, CO, United States of America

K-fuel Partnership

Forward Citations = 15

1 inventor:

goldMedal Edward Koppelman (2 out of 16 patents)

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