Chemistry: molecular biology and microbiology – Animal cell – per se ; composition thereof; process of... – Method of regulating cell metabolism or physiology
Reexamination Certificate
2005-03-15
2005-03-15
Redding, David A. (Department: 1744)
Chemistry: molecular biology and microbiology
Animal cell, per se ; composition thereof; process of...
Method of regulating cell metabolism or physiology
C435S372000, C435S395000, C435S401000, C435S402000, C435S297200, C435S297300, C435S298200
Reexamination Certificate
active
06867040
ABSTRACT:
Apparatus and methods are directed to a perfusion culture system in which a rotating bioreactor is used to grow cells in a liquid culture medium, while these cells are attached to an adhesive-treated porous surface. As a result of this arrangement and its rotation, the attached cells divide, with one cell remaining attached to the substrate, while the other cell, a newborn cell is released. These newborn cells are of approximately the same age, that are collected upon leaving the bioreactor. The populations of newborn cells collected are of synchronous and are minimally, if at all, disturbed metabolically.
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Gonda Steve
Helmstetter Charles E.
Thornton Maureen
Polsinelli Shalton Welte Suelthaus PC
Redding David A.
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