Patents by Inventor Vladimir Ivanovich Sobolev

Vladimir Ivanovich Sobolev 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).

  • Catalysts for production of phenol and its derivatives
    Patent number: 5672777
    Abstract: Zeolite catalysts useful for the production of phenol and its derivatives by oxidative hydroxylation of benzene and its derivatives by nitrous oxide, e.g. at temperatures of 225.degree.-450.degree. C., having substantially enhanced process characteristics resulting from hydrothermal treatment using a gas containing from about 3 to 100 mole percent water vapor, e.g. in nitrogen, at a temperature ranging from about 500.degree. to 1000.degree. C. Two hours of hydrothermal treatment has been shown to be effective.
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: September 30, 1997
    Assignee: Monsanto Company
    Inventors: Alexander Sergeevich Kharitonov, Gennady Ivanovich Panov, Galina Anatolievna Sheveleva, Larisa Vladimirovna Pirutko, Tatyana Pavlovna Voskresenskaya, Vladimir Ivanovich Sobolev
  • Catalysts for production of phenol and its derivatives
    Patent number: RE36856
    Abstract: Zeolite catalysts useful for the production of phenol and its derivatives by oxidative hydroxylation of benzene and its derivatives by nitrous oxide, e.g. at temperatures of 225.degree.-450.degree. C., having substantially enhanced process characteristics resulting from hydrothermal treatment using a gas containing from about 3 to 100 mole percent water vapor, e.g. in nitrogen, at a temperature ranging from about 500.degree. to 1000.degree. C. Two hours of hydrothermal treatment has been shown to be effective.
    Type: Grant
    Filed: May 6, 1998
    Date of Patent: September 5, 2000
    Inventors: Alexander Sergeevich Kharitonov, Gennady Ivanovich Panov, Galina Anatolievna Sheveleva, Larisa Vladimirovna Pirutko, Tatyana Pavlovna Voskresenskaya, Vladimir Ivanovich Sobolev