Patents by Inventor Wilhelm Pistulka

Wilhelm Pistulka 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).

  • Aqueous NaCl test solution for aluminum and its alloys
    Patent number: 4067751
    Abstract: A corrosive solution, designed to accelerate the rupture of workpieces of aluminum and its alloys in stress-corrosion-cracking tests, contains sodium chloride, hydrogen peroxide and sodium acetate dissolved in water, with maintenance of an acidic pH.
    Type: Grant
    Filed: May 11, 1976
    Date of Patent: January 10, 1978
    Assignee: Vereinigte Metallwerke Ranshofen-Berndorf Aktiengesellschaft
    Inventor: Wilhelm Pistulka