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, 1997
Filed:
Jun. 06, 1995
Applicant:
Inventor:
David C Kramer, San Anselmo, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ; C10G / ;
U.S. Cl.
CPC ...
208252 ; 2082 / ;
Abstract
Sulfuric acids or salts thereof are used to remove metals, particularly organically-bound calcium, from hydrocarbonaceous feedstocks. An aqueous solution of the acid or its salts is used to extract the metals from the feedstock prior to processing.
Kramer, David. (1997). Demetalation of hydrocarbonaceous feedstocks using sulfuric acid and (U.S. Patent No. 5593573). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5593573
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