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:
Aug. 09, 1994
Filed:
Jul. 09, 1993
Applicant:
Inventors:
Masyood Akhtar, San Diego, CA (US);
Kim C Le, San Diego, CA (US);
Jess Pedigo, La Mesa, CA (US);
Charles H Smith, Ramona, CA (US);
Assignee:
Johnson Matthey Inc., Wayne, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C / ; C03C / ; C03C / ;
U.S. Cl.
CPC ...
501 15 ; 501 17 ; 501 46 ; 501 73 ; 501 74 ;
Abstract
A sealing glass composition suitable for bonding ceramic surfaces at low temperatures and which includes in weight percent 5-50% thallium oxide, 10-40% vanadium oxide, 5-30% tellurium oxide, 1.5-15% arsenic oxide and 1-5% phosphorous oxide. Other additives may be included, such as bismuth oxide. A paste formulated from said glass and a filler for the purpose of adjusting the fluidity and/or dielectric constant of the paste.