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:
Dec. 06, 1994
Filed:
Aug. 27, 1993
Masood Chowhan, Arlington, TX (US);
Thierry Bilbault, Fort Worth, TX (US);
Ronald P Quintana, Arlington, TX (US);
Alcon Laboratories, Inc., Fort Worth, TX (US);
Abstract
An improved process for cleaning and disinfecting contact lenses with a single solution is described. The process utilizes the cleaning effect of a cleaning agent in combination with the solvent action of water and physical agitation of the lens (i.e., by means of rubbing) to achieve a degree of cleaning which is comparable to or better than prior processes which utilize surfactant-cleaners. The cleaning agent is selected from polycarboxylates, polysulfonates and polyphosphates. The preferred cleaning agent is citrate. The process also offers greater convenience, relative to many prior systems for cleaning and disinfecting contact lenses, since the need to utilize additional products to clean the lenses is eliminated.