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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12434250 B1

PDFFull Text
Date of Patent:
Oct. 07, 2025

Filed:

Mar. 12, 2024

Method of forming graphene quantum dots from coal

Applicant:

Energy and Environmental Research Center Foundation, Grand Forks, ND (US);

Inventors:

Alexander Azenkeng, Grand Forks, ND (US);

Jason D. Laumb, Grand Forks, ND (US);

Assignee:

Energy & Environmental Research Center, Grand Forks, ND (US);

Attorney:

Schwegman Lundberg & Woessner, P.A.

Primary Examiner:

Daniel C McCracken

Int. Cl.
CPC ...
B03B 9/00 (2006.01); B03B 7/00 (2006.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01); C01B 32/184 (2017.01); C01B 32/194 (2017.01); C09K 11/65 (2006.01);
U.S. Cl.
CPC ...
B03B 9/005 (2013.01); B03B 7/00 (2013.01); C01B 32/184 (2017.08); C01B 32/194 (2017.08); C09K 11/65 (2013.01); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01); C01B 2204/02 (2013.01); C01B 2204/22 (2013.01); C01P 2004/64 (2013.01); C01P 2006/40 (2013.01); C01P 2006/60 (2013.01);
Abstract

Upgraded coal, method of forming the same, and graphene films and quantum dots made therefrom. A method of upgrading coal includes cleaning coal to form a cleaned coal residue. The method also includes (A) reacting the cleaned coal residue with an oxidizable inorganic metallic agent, or (B) reacting the cleaned coal residue with a reducing agent, or a combination thereof, to form the upgraded coal.

Find Patent Forward Citations

Azenkeng, Alexander. (2025). Method of forming graphene quantum dots from coal (U.S. Patent No. 12434250). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12434250

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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