Patents by Inventor Vladimir I. Listopad

Vladimir I. Listopad 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).

  • Method of making billets
    Patent number: 4288907
    Abstract: A method of making billets, whereby a composite billet is produced by continuous casting or rolling, which billet is star-shaped in cross section and has at least two ray members disposed symmetrically relative to the central longitudinal axis of the composite billet; the base of each star ray member of the composite billet at the place of its juncture with the central portion thereof is selected to be 0.72 to 2.3 of the ray member height, the other base being 0.5 to 1.
    Type: Grant
    Filed: June 28, 1978
    Date of Patent: September 15, 1981
    Inventors: Julian M. Chumanov, Anatoly L. Liberman, Vladimir I. Listopad, Vasily V. Polyakov, Vyacheslav F. Gubaidulin, Grigory M. Shulgin, Dmitry P. Evteev, Sergei P. Efimenko, Veniamin V. Fulmakht, Vladimir P. Slednev, Viktor I. Pogorzhelsky, Valentin B. Shum, Anatoly A. Tolpa