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:
Jul. 06, 1993
Filed:
Dec. 13, 1991
Applicant:
Inventors:
Henry Sawatzky, Ottawa, Ontario, CA;
Terrance Giddings, Ottawa, Ontario, CA;
Brian Farnand, Nepean, Ontario, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ; C10G / ;
U.S. Cl.
CPC ...
422-5 ; 554205 ; 210756 ; 210916 ; 208190 ; 208223 ; 208240 ; 2082 / ; 208348 ; 208362 ;
Abstract
A method is provided for treating a sewage sludge-derived oil having a particular chemical composition, to reduce its odor. The method includes the first step of distilling the sewage sludge-derived oil to 150.degree. C. to remove water and volatile organic components, and then the essential step of circulating a gas consisting essentially of carbon dioxide gas therethrough.
Sawatzky, Henry. (1993). Deodorization of sewage sludge-derived oils (U.S. Patent No. 5225159). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5225159
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile