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. 22, 1993
Filed:
May. 22, 1991
Applicant:
Inventor:
Abraham R DeKraker, Sarnia, CA;
Assignee:
Exxon Research & Engineering Company, Florham Park, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ; B04B / ;
U.S. Cl.
CPC ...
208 35 ; 196 145 ; 494 52 ; 494 65 ; 494 67 ; 494 68 ;
Abstract
Hydrocarbon dewaxing using propane or other autorefrigerative dewaxing solvent can be practiced in a centrifuge wherein the centrifugal force generated in the centrifuge produces a pressure gradient permitting dewaxing to be practiced on a continuous basis.