Patents by Inventor James Maynard Berdahl

James Maynard Berdahl 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).

  • Universally useable tableting ingredients
    Patent number: 4013820
    Abstract: Known polymers of a defined class are converted into a universally useable tableting ingredient that provides controlled release of a drug from tablets made with this material. The new material is made in a rapidly stirred, nonaqueous solvent in a one-step process.
    Type: Grant
    Filed: November 7, 1974
    Date of Patent: March 22, 1977
    Assignee: Abbott Laboratories
    Inventors: Bahram Farhadieh, James Maynard Berdahl