Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2006-09-12
2006-09-12
Mruk, Brian P (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S382000, C510S421000, C510S473000, C510S475000, C510S504000, C510S512000, C514S839000, C514S840000, C424S078040, C422S028000
Reexamination Certificate
active
07105473
ABSTRACT:
Multi-purpose solutions for contact lens care provide substantial lens wearer/user comfort and/or acceptability, with minimal, if any, corneal epithelial punctate fluorescein staining. Such solutions may include an aqueous liquid medium; an antimicrobial component comprising polyquarternium-1 and a hexamethylene biguanide polymer having a number average molecular weight in the range of from about 4,000 to about 45,000; a surfactant component, preferably a poly(oxyethylene)-poly(oxypropylene) block copolymer surfactant, in an effective amount; a buffer component in an effective amount; a viscosity-inducing component, preferably selected from cellulosic derivatives, in an effective amount; and a tonicity component in an effective amount. Such solutions have substantial performance, comfort and acceptability benefits, which, ultimately, lead to ocular health advantages and avoidance of problems caused by contact lens wear.
REFERENCES:
patent: 6369112 (2002-04-01), Xia
patent: 6930077 (2005-08-01), Glick et al.
Glick Robert
Huth Stanley W.
Powell Charles H.
Yu Zhi-Jian
Advanced Medical Optics Inc.
Advanced Medical Optics, Inc.
Mruk Brian P
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