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. 03, 2001
Filed:
May. 21, 1999
Applicant:
Inventors:
Marie J. M. Comte, Fontenay aux Roses, FR;
Alexandre M. Mayolet, Chartres, FR;
Assignee:
Corning S.A., Avon, Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/068 ; C03C 2/100 ;
U.S. Cl.
CPC ...
C03C 3/068 ; C03C 2/100 ;
Abstract
The object of the present invention is a novel inorganic glass, which is capable of being strengthened by ionic exchange, and which has a refractive index of between 1.67 and 1.72; said novel glass strengthened on the surface thereof; its method of strengthening; and the corresponding ophthalmic lenses. Said novel glass has the following composition, expressed in wt. % of oxides: