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:
Jan. 14, 1992
Filed:
Nov. 13, 1989
Applicant:
Inventors:
Sunggyu Lee, Akron, OH (US);
Sunil K Kesavan, Akron, OH (US);
Vetkav R Parameswaran, University Heights, OH (US);
Assignee:
The University of Akron, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10L / ;
U.S. Cl.
CPC ...
44624 ;
Abstract
Organic sulfur is removed from coal by extraction with a water/methanol/carbon dioxide mixture under supercritical conditions of temperature and pressure, i.e., at a temperature and pressure of the critical temperature and pressure, respectively. The preferred solvent used for extraction has the following composition (expressed as a mole fraction);
Lee, Sunggyu. (1992). Extraction of organic sulfur from coal by use of supercritical fluids (U.S. Patent No. 5080692). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5080692
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile