Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Biocides; animal or insect repellents or attractants
Reexamination Certificate
2008-09-23
2008-09-23
Sheikh, Humera N. (Department: 1618)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Biocides; animal or insect repellents or attractants
C424S400000, C424S404000, C424S406000
Reexamination Certificate
active
11539422
ABSTRACT:
Purification materials with broad spectrum antimicrobial properties and methods and devices for fluid treatment utilizing said materials are provided. The purification materials include biguanide hydrates and bases. A particular composition includes chlorhexidine dihydrate with the chemical formula (C22H30N10Cl2.1.3 H2O), which is useful in water purification applications.
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Gooch Jan W.
Johnston Arthur F.
Johnston Arthur W.
Ahmed Hasan S
Sheikh Humera N.
Sutherland & Asbill & Brennan LLP
Water Visions International, Inc.
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