Patents by Inventor G. J. Boer

G. J. Boer 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).

  • Composite body for long-term delivery of effective substances
    Patent number: 4525340
    Abstract: A composite body for long-term delivery of effective substances has a carrier for effective substances composed of a microporous polymer, and a coating composed of cellulose nitrate. The carrier can be composed of a thermoplastic polymer with a substantially isotropic microporous cellular polymer structure with a plurality of substantially spherical cells of a mean diameter between 0.5 and 100 micrometers. The cells are connected with one another by pores. The composite body serves for long-term delivery of peptides, hormones, neurotransmitters, particularly vasopressin and oxytocin.
    Type: Grant
    Filed: April 20, 1983
    Date of Patent: June 25, 1985
    Assignee: Akzo NV
    Inventors: Wolfgang Lange, G. J. Boer