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:
May. 30, 1989
Filed:
Sep. 17, 1987
Applicant:
Inventor:
Amitava Gupta, Pasadena, CA (US);
Assignee:
Ioptex Research, Inc., Azusa, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ; B29D / ;
U.S. Cl.
CPC ...
623-6 ; 264-17 ;
Abstract
A deformable-elastic intraocular lens comprising a deformable-elastic lens body of crosslinked acrylic material formed of copolymers of methacrylate and acrylate esters which are relatively hard and relatively soft at body temperature, crosslinked with a diacrylate ester to produce an acrylic copolymer having a substantially tack-free surface, a crosslink density of between 0.5.times.10.sup.-2 and 1.5 .times.10.sup.-2 moles per liter, and glass transition temperature in the range of -30.degree. C. to 25.degree. C., a tensile modulus between 1000 and 3000 psi and a elongation a break of 100% or greater.