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. 18, 1992
Filed:
Nov. 09, 1989
Applicant:
Inventors:
Maylee H Chou, Lexington, US;
Edward J Ellis, Lynnfield, both of MA, US;
Assignee:
Polymer Technology Corporation, Wilmington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
134-7 ; 252545 ; 252 891 ; 252155 ; 25217413 ; 25217418 ; 25217423 ; 25217425 ; 252551 ; 252D / ;
Abstract
New contact lens cleaning materials are designed for use in cleaning fluorine and silicon containing hard contact lenses. The contact lens cleaning materials are water based and contain an alkylphenyl polyether alcohol surfactant and an anionic second surfactant selected to have good cleaning action with respect to protein and mucous-like material deposits.