Patents by Inventor Patrick B. Deasy

Patrick B. Deasy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4874612
    Abstract: Multi-component implants which contain at least two shaped pieces containing active compound, wherein these shaped pieces contain biologically degradable copolymers of lactic acid and glycolic acid with a ratio by weight of lactide to glycolide of 90:10 to 60:40, and wherein there are at least two types of shaped pieces, A and B, type A containing copolymers with a content of lactide which is 5 to 15% by weight lower than in type B, release the active compound over a prolonged period, uniformly or with increasing amount released.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: October 17, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Patrick B. Deasy