Patents by Inventor Leon M. Marmorstein

Leon M. Marmorstein 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 oil well productivity increase
    Patent number: 5337825
    Abstract: Oil wells productivity is increased by cyclically treating a shaft-adjacent zone of the well with a seam-forming liquid which contains additional activating components.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: August 16, 1994
    Assignee: UMA Ltd.
    Inventors: Leon M. Marmorstein, Ignaty M. Petuhov, Vladimir S. Sidorov, Piotr A. Aleksandrov, Valentin T. Grebennikov