Patents by Inventor Johann Putter, deceased

Johann Putter, deceased 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).

  • Delayed-action acetylsalicylic acid formulations for oral administration
    Patent number: 4601895
    Abstract: A delayed-action acetylsalicylic acid formulation comprising by weight 60 to 90% of acetylsalicylic acid, 8 to 40% pregelatinized starch, and 0 to 30% of additives. The amount of starch controls the rate of release.
    Type: Grant
    Filed: December 6, 1984
    Date of Patent: July 22, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernhard Streuff, Johann Putter, deceased