Patents by Inventor Pertti O. Tormala

Pertti O. Tormala 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).

  • Method for preparing matrix-type pharmaceutical compositions through ultrasonic means to accomplish melting
    Patent number: 5620697
    Abstract: An ultrasonic processing method by which polymer/drug composites can be quickly and efficiently molded to form matrix-type drug delivery systems is disclosed. The advantages of the method include speed and good control of the process. It also causes less degradation in polymers and/or drugs than most conventional processing methods.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: April 15, 1997
    Assignees: Orion-Yhtyma Oy, Leiras Oy
    Inventors: Pertti O. Tormala, Saila S. Miettinen-Lahde