Cleaning and liquid contact with solids – Processes – Using sequentially applied treating agents
Reexamination Certificate
2007-08-22
2009-06-02
Carrillo, Sharidan (Department: 1792)
Cleaning and liquid contact with solids
Processes
Using sequentially applied treating agents
C134S002000, C134S004000, C134S028000, C134S029000, C134S036000, C134S041000, C134S042000, C510S161000, C510S283000, C510S284000, C510S340000, C510S356000, C510S421000, C510S424000, C510S425000, C510S480000, C510S497000, C510S522000, C510S524000
Reexamination Certificate
active
07540926
ABSTRACT:
A method for cleaning contaminated surfaces of surgical waste management equipment. The method includes rinsing surfaces of the equipment with water to remove water soluble contaminants and waste material. A rinse solution is applied to the surfaces of the equipment to provide a residual film thereon. The rinse solution includes a first nonionic alkoxylated alcohol surfactant having an HLB value ranging from about 10 to about 15, a second nonionic alkoxylated alcohol surfactant having an HLB value ranging from about 16 to 20, an aqueous solvent, and optionally, a bio-film permeation agent. A total of the first surfactant and the second surfactant in the composition ranges from about 2 to about 20 percent by weight of a total weight of the composition, and a ratio of the second surfactant to the first surfactant in the composition ranges from about 2:1 to about 4:1.
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International Search Report in PCT Application No. PCT/US2008/061751 dated Aug. 8, 2008.
DeVault Richard H.
Dooley Joseph B.
Hubrig Jeffrey G.
Izenbaard John M.
Parker Rodney D.
Carrillo Sharidan
Innovation Services, Inc.
Luedeka Neely & Graham P.C.
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