Chemistry: molecular biology and microbiology – Virus or bacteriophage – except for viral vector or... – Recovery or purification
Reexamination Certificate
2007-06-05
2007-06-05
Zeman, Robert A. (Department: 1645)
Chemistry: molecular biology and microbiology
Virus or bacteriophage, except for viral vector or...
Recovery or purification
C424S204100, C424S209100, C424S210100
Reexamination Certificate
active
09803778
ABSTRACT:
A method of removing bacterial endotoxin from a pharmaceutical process solution is disclosed. In one embodiment, the method comprises treating the solution with a surfactant effective to dissociate the endotoxin from a pharmaceutical drug or vaccine substance in the solution, and then filtering the solution through a molecular cut-off filter having a pore size effective to retain the pharmaceutical drug or vaccine substance but allow the dissociated bacterial endotoxin to pass therethrough.
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Mapleson Bridget Kathleen
Sizer Philip
Bell Charles E.
Dias Kathy Smith
Heslin Rothenberg Farley & & Mesiti P.C.
Medeva Europe Limited
Zeman Robert A.
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