Patents by Inventor .ANG.ke R. Lindahl

.ANG.ke R. Lindahl 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).

  • Controlled-release medical preparations
    Patent number: 4824678
    Abstract: The present invention concerns a novel pharmaceutical preparation having a biphasic release pattern. The preparation comprises a tablet core containing a drug. The tablet is coated with a coating essentially consisting of a film-forming water-insoluble polymer having fine water soluble particles randomly distributed therein. The fine particles include a drug active substance, which is the same as the drug in the core. The drug active substance in the particles may also be different from the one in the tablet core.
    Type: Grant
    Filed: September 5, 1985
    Date of Patent: April 25, 1989
    Assignee: Aktiebolaget Leo
    Inventors: .ANG.ke R. Lindahl, Bo M. Ekman