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:
Feb. 16, 1993
Filed:
May. 03, 1991
Applicant:
Inventor:
William J Murphy, Brights Grove, CA;
Assignee:
Exxon Research and Engineering Company, Florham Park, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
20415715 ; 204156 ;
Abstract
The activity maintenance of the plasma initiators used during the upgrading of a hydrocarbon feedstock in a reaction zone using microwave radiation can be improved if molecular hydrogen is added to the reaction zone such that the weight ratio of carbon (in the molecules in contact with the plasma initiators) to hydrogen is maintained at less than 6:1 during upgrading.