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. 24, 1990
Filed:
Aug. 15, 1988
Applicant:
Inventor:
Hung C Ling, Belle Mead, NJ (US);
Assignee:
AT&T Bell Laboratories, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; C01F / ; C01G / ; C04B / ;
U.S. Cl.
CPC ...
505-1 ; 252518 ; 252521 ; 423604 ; 423635 ; 501123 ; 502341 ; 502346 ; 505742 ; 505780 ;
Abstract
In a process for making the superconductive composition YBa.sub.2 Cu.sub.3 O.sub.x, cupric carbonate or cupric oxalate is used as the copper source and barium carbonate as the barium source to achieve higher densification.