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:
Sep. 04, 1984
Filed:
Oct. 25, 1982
Applicant:
Inventors:
William A Kofke, Jr, Irwin, PA (US);
Ilia Milson, Pittsburgh, PA (US);
Assignee:
Gulf Research & Development Company, Pittsburgh, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; C10G / ; C10G / ;
U.S. Cl.
CPC ...
502 33 ; 2082 / ; 208305 ; 208307 ;
Abstract
Spent filter clay used in the removal of contaminating organic polar-type compounds from petroleum distillates is regenerated by flushing the spent filter clay with liquid methanol and recovering and recycling the contaminated wash methanol without distillation through the filter for additional flushing of the contaminants from the clay.
Kofke, Jr, William. (1984). Regeneration of filter clay with liquid methanol (U.S. Patent No. 4469805). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4469805
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile