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:
Oct. 11, 1994
Filed:
Oct. 19, 1992
Applicant:
Inventors:
Eugene P Dai, Port Arthur, TX (US);
David E Sherwood, Jr, Port Arthur, TX (US);
Burton H Bartley, Port Arthur, TX (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C10G / ; C10G / ;
U.S. Cl.
CPC ...
208111 ; 208120 ;
Abstract
A novel zeolite characterized by a large number of secondary pores, a substantially decreased lattice constant, and a substantially decreased acid site density is attained by hydrothermal and acid-treating of an ultrastable Y-zeolite or a superultrastable Y-zeolite.