US PATENT SUBCLASS 514 / 964
SUSTAINED OR DIFFERENTIAL RELEASE TYPE

Current as of: June, 1999
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514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

964SUSTAINED OR DIFFERENTIAL RELEASE TYPE {1}
965  DF  .~> Discrete particles in supporting matrix

DEFINITION

Classification: 514/964

SUSTAINED OR DIFFERENTIAL RELEASE TYPE:

Subject matter involving a combination of an active ingredient and a carrier system which permits or results in a sustained or diffeential release of said active ingredient.