Patents by Inventor Leonhard Schilk

Leonhard Schilk 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).

  • Stable alpha-interferon dosage forms
    Patent number: 4824674
    Abstract: Stable, dosage forms of .alpha.-interferons, particularly alpha-2-interferon, are described, which comprise a non-lyophilized dry film of acid-stabilized .alpha.-interferons, e.g. alpha-2-interferon, on inert carriers.
    Type: Grant
    Filed: August 21, 1987
    Date of Patent: April 25, 1989
    Assignee: Karl Thomae
    Inventors: Robert Becker, Bernd Kruss, Leonhard Schilk
  • Eye rod, process and apparatus for loading the same with solutions or suspensions of active substance
    Patent number: 4659584
    Abstract: The specification describes a process and apparatus for charging eye rods with solutions or suspensions of active substance. The latter are applied dropwise, by means of a micrometering device, to specific points on the eye rods which are set in rotation, and simultaneously or subsequently the solvent or suspension agent is removed.
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: April 21, 1987
    Assignee: Dr. Karl Thomae GmbH
    Inventor: Leonhard Schilk