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. 04, 1976
Filed:
Jul. 09, 1973
Joseph Z Krezanoski, Los Altos, CA (US);
John C Petricciani, Los Altos, CA (US);
Flow Pharmaceuticals, Inc., Palo Alto, CA (US);
Abstract
A contact lens cleaning, storing and wetting solution is provided for cleaning, storing and wetting flexible silicone contact lenses. The solution comprises a poly (oxyethylene)- poly (oxypropylene) block copolymer having a molecular weight between about 1900 and 15,500, a water solubility in excess of about 10 grams per 100 ml., a cloud point in 1 percent aqueous solution above about 30.degree.C., and a Foam Height in excess of 30 mm; a microbial growth inhibitor, such as benzalkonium chloride; purified water; and a sufficient amount of at least one essentially neutral, water-soluble compatible salt to provide a solution salt content equivalent to about 0.5 to 1.8 percent sodium chloride. The solution can also contain disodium or trisodium ethylenediamine tetraacetate and a polymeric viscosity building agent, if desired. A cleaning composition for polyhydroxylated alkyl methacrylate soft contact lenses includes the above poly(oxyethylene)-poly(oxypropylene) block copolymer and sorbic acid as a germicidal ingredient.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile