US PATENT SUBCLASS 435 / 236
.~ Inactivation or attenuation; producing viral subunits

Current as of: June, 1999
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435 /   HD   CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY

235.1  DF  VIRUS OR BACTERIOPHAGE, EXCEPT FOR VIRAL VECTOR OR BACTERIOPHAGE VECTOR; COMPOSITION THEREOF; PREPARATION OR PURIFICATION THEREOF; PRODUCTION OF VIRAL SUBUNITS; MEDIA FOR PROPAGATING {2}
236.~ Inactivation or attenuation; producing viral subunits {2}
237  DF  .~.~> By serial passage of virus
238  DF  .~.~> By chemical treatment

DEFINITION

Classification: 435/236

Inactivation or attenuation; producing viral subunits:

(under subclass 235.1) Subject matter in which the virulence

of the virus is decreased or the virus is reduced to its component parts.

(1) Note. This subclass includes methods of attenuation by physical means, e.g., freezing, etc.

(2) Note. Viral subunits include the virus protein coat, viral nucleic acid and viral enzymes.

SEE OR SEARCH CLASS

424, Drug, Bio-Affecting and Body Treating Compositions,

204.1+, for immunologic compositions prepared by the irradiation of a virus.