Patents by Inventor Sjo

Sjo 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 beads having glass or silicon dioxide core
    Patent number: 4927640
    Abstract: Controlled release preparation containing a number of insoluble beads applied with one or more pharmaceutically active compounds, a method for the production thereof and the use in a treatment where a controlled release of a pharmaceutically active compound is needed.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: May 22, 1990
    Assignee: Aktiebolaget Hassle
    Inventors: Lars-Erik D. Dahlinder, Mats O. Johansson, John A. Sandberg, Sjo