Patents by Inventor Axel Paul Hartl

Axel Paul Hartl 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 of producing multi-layer medicaments in solid form for oral or rectal administration
    Patent number: 6120802
    Abstract: The present invention relates to a process for producing multilayer, solid drug forms for oral or rectal administration, which comprises coextrusion of at least two compositions which in each case comprise a thermoplastic, pharmacologically acceptable polymeric binder which is soluble or swellable in a physiological environment, and at least one of which contains a pharmaceutical active ingredient, and shaping the coextruded multilayer material to the required drug form.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: September 19, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Jorg Breitenbach, Axel Paul Hartl, Jurgen Hofmann, Joerg Rosenberg, Michael Schiessl, Hans Dieter Zettler