Patents by Inventor Walter Tepe

Walter Tepe 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).

  • Soil testing apparatus and method
    Patent number: 4201549
    Abstract: Soil testing apparatus comprising two dialytic tubes, one of the tubes containing a dialyzable solution containing H-ions and the other tube containing a dialyzable solution containing carbonate (CO.sub.3)ions. The invention also concerns a method of testing a soil sample using such an apparatus.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: May 6, 1980
    Assignee: Dialytic Electrolysis Laboratorium (Proprietary) Limited
    Inventors: Walter Tepe, Adam J. J. Van Niewenhuizen