Upgraded Coal
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2024-04-16
ALEXANDRIA, Virginia, April 16 -- ENERGY AND ENVIRONMENTAL RESEARCH CENTER FOUNDATION, Grand Forks, North Dakota has been assigned a patent (No. US 11958056 B2, initially filed Aug. 25, 2021) developed by Alexander Azenkeng, Grand Forks, North Dakota, and Jason Laumb, Grand Forks, North Dakota, for "Upgraded coal." . . .