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. 31, 1984
Filed:
May. 06, 1983
Applicant:
Inventors:
Peter Hofer, Aschaffenburg, DE;
Ulrich Muller, Johannesberg, DE;
Manfred Barenz, Dreieich, DE;
Horst Schafer, Aschaffenburg-Obernau, DE;
Wolfgang Muller-Lierheim, Aschaffenburg, DE;
Assignee:
Titmus Eurocon Kontaktlinsen GmbH KG & Co., Aschaffenburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; G02C / ;
U.S. Cl.
CPC ...
526264 ; 3511 / ; 5263075 ; 526312 ;
Abstract
A soft contact lens having in preferred embodiment an elliptical inside surface which has a numerical eccentricity of 0.2 to 0.5 and a zenith radium of curvature of 8.0 to 8.4 mm. It preferably consists of a copolymer comprising of 50% to 90% hydroxyethyl-methacrylate (HEMA) by weight, 2% to 20% one or more unsaturated carboxylic acids, 2% to 20% one or more base monomers, 5% to 25% aliphatic acrylate or methacrylate, and 0.1% to 1% of a dialkylene-glycol-dimethacrylate crosslinker.