Cleaning and liquid contact with solids – Processes – Using sequentially applied treating agents
Reexamination Certificate
2007-04-03
2007-04-03
Carrillo, Sharidan (Department: 1746)
Cleaning and liquid contact with solids
Processes
Using sequentially applied treating agents
C510S421000, C510S424000, C510S425000, C134S002000, C134S004000, C134S028000, C134S029000, C134S036000, C134S041000, C134S042000
Reexamination Certificate
active
11460094
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 nonylphenol surfactant having an HLB value ranging from about 10 to about 15, a second nonionic nonylphenol surfactant having an HLB value ranging from about 16 to 20, a bio-film permeation agent, and an aqueous solvent. A total of the first surfactant and the second surfactant in the solution ranges from about 2 to about 20 percent by weight of a total weight of the solution and a ratio of the second surfactant to the first surfactant in the solution ranges from about 2:1 to about 4:1.
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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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