US PATENT SUBCLASS 435 / 2 MAINTAINING BLOOD OR SPERM IN A PHYSIOLOGICALLY ACTIVE STATE OR COMPOSITIONS THEREOF OR THEREFOR OR METHODS OF IN VITRO BLOOD CELL SEPARATION OR TREATMENT
Current as of: June, 1999
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MAINTAINING BLOOD OR SPERM IN A PHYSIOLOGICALLY ACTIVE STATEOR COMPOSITIONS THEREOF OR THEREFOR OR METHODS OF IN VITROBLOOD CELL SEPARATION OR TREATMENT:
(under the class definition) Processes or compositions for the maintenance of blood or sperm in a physiologically active state or for the in vitro separation or treatment of blood cells.
(1) Note. This subclass includes methods for preserving the viability of sperm by chemical means.
(2) Note. This subclass provides for compositions for artificial insemination.
SEE OR SEARCH THIS CLASS, SUBCLASS:
235.1+, where the tissue or cell culture is concomitant with virus propagation.
243+, for culture media for propagating microorganism.
SEE OR SEARCH CLASS
62, Refrigeration, for methods of maintaining the viability of living tissue and cells including sperm under refrigeration or in a frozen state. These processes may include the addition of chemical agents to prevent or minimize cellular damage from the refrigeration. 128, Surgery, appropriate subclasses for a method of blood transfusion or artificial insemination.
424, Drug, Bio-Affecting and Body Treating Compositions,
184.1+, for therapeutic compositions containing a living cell which functions as an antigen; and subclass 529 for therapeutic compositions containing viable blood cells and a therapeutically active ingredient. See subclass 1.17 for compositions comprising a radiolabeled cell or sub-cellular structure, including red blood cells, intended for class defined uses such as in vivo diagnosing (e.g., imaging), methods of making such compositions, and nominal methods of using such compositions.
