For the Inventor, By the Inventor

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Bismark, ND, United States of America

Delta Energy Holdings, LLC

USPTO Granted Patents = 2

CIPO Patents = 4

EPO Patents = 1

Trademarks = 3

Forward Citations = 12

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5 inventors (with patents filed for the assignee):

Duane M Erickson (2 out of 2 patents)

Alan Marc Levine (2 out of 15 patents)

Daniel Eric Steinmeyer (2 out of 9 patents)

4. Duane Errickson (0 patent)

2 patents: Sort by Forward Citations

1. 8512643 - Method of devolatilizing recycled carbon black and associated apparatus (2013-08-20),

2. 8263038 - Method of devolatilizing recycled carbon black and associated method (2012-09-11),

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USPTO Data Jan 1 1976 - Dec 9 2025

2 Patents

#1 in Bismark, ND

#92 in North Dakota

#92,599 in US

Bismark, ND, United States of America

Delta Energy Holdings, LLC

Forward Citations = 12

5 inventors:

Duane M Erickson (2 out of 2 patents)

Alan Marc Levine (2 out of 15 patents)

Daniel Eric Steinmeyer (2 out of 9 patents)

4. Duane Errickson (0 patent)

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