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.:
Date of Patent:
Jun. 18, 2024
Filed:
Sep. 28, 2022
Applicant:
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Inventors:
Shahid Ali Muhammad Arshad, Dhahran, SA;
Safyan A. Khan, Dhahran, SA;
Mohamed A. Morsy, Dhahran, SA;
Assignee:
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran, SA;
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/03 (2006.01); B82Y 15/00 (2011.01); B82Y 30/00 (2011.01); E21B 47/13 (2012.01); E21B 49/00 (2006.01); H01F 1/00 (2006.01);
U.S. Cl.
CPC ...
C09K 8/03 (2013.01); B82Y 30/00 (2013.01); E21B 47/13 (2020.05); E21B 49/00 (2013.01); H01F 1/0018 (2013.01); H01F 1/0054 (2013.01); B82Y 15/00 (2013.01); C09K 2208/10 (2013.01);
Abstract
The invention is directed to hydrophilic and hydrophobic superparamagnetic nanoparticles and their use as contrast agents for NMR including agents that distinguish oil and water in NMR logging of geological formations containing oil or water. Methods of making these SPIONs are also described.