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:
Feb. 07, 2006
Filed:
Dec. 17, 2003
Applicants:
Howard Allen Ketelson, Fort Worth, TX (US);
David L. Meadows, Colleyville, TX (US);
Bor-shyue Hong, Arlington, TX (US);
Inventors:
Howard Allen Ketelson, Fort Worth, TX (US);
David L. Meadows, Colleyville, TX (US);
Bor-Shyue Hong, Arlington, TX (US);
Assignee:
Alcon, Inc., Hunenberg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 3/26 (2006.01); C11D 3/30 (2006.01); C11D 3/32 (2006.01); C11D 3/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
Cleaning compositions for contact lenses are described. The compositions contain multifunctional anionic surfactants that include at least two hydrophilic dissociating head groups. The multifunctional surfactants described (e.g., LEDA) possess both surface active and chelating properties, and have been found to be particularly effective in removing protein deposits from contact lenses.