Patents by Inventor Johannes Heinrich Antonious Bartholomaeus

Johannes Heinrich Antonious Bartholomaeus 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).

  • Rapidly disintegrating medicinal form of tramadol or a tramadol salt
    Patent number: 5776492
    Abstract: Rapidly disintegrating, binder-free tablets of tramadol or a tramadol salt for oral administration comprising microcrystalline cellulose and tramadol or a pharmaceutically acceptable tramadol salt in a weight ratio of at least 2:1.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: July 7, 1998
    Assignee: Gruenenthal GmbH
    Inventors: Juergen Betzing, Johannes Heinrich Antonious Bartholomaeus