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. 16, 2005
Filed:
Jun. 26, 2001
Gregory Carlson, Park Ridge, IL (US);
Edgar Allan Blair, Flagstaff, AZ (US);
Peter Wachtel, Scotch Plains, NJ (US);
Michael Quinn, Valparaiso, IN (US);
Joshua Wallach, Des Plaines, IL (US);
Gregory Carlson, Park Ridge, IL (US);
Edgar Allan Blair, Flagstaff, AZ (US);
Peter Wachtel, Scotch Plains, NJ (US);
Michael Quinn, Valparaiso, IN (US);
Joshua Wallach, Des Plaines, IL (US);
Novartis AG, Basel, CH;
Abstract
A prepolymer is prepared by reacting a mixture containing (a) at least one multifunctional compound, (b) at least one diisocyanate, and (c) at least one diol. The diol has a weight average molecular weight of at most 6000. The prepolymer, when reacted with an excess of water, forms a hydrogel polymer. The mixture of the prepolymer and water may be reaction molded, and used to form a contact lens.