Patents by Inventor Vyacheslav Nikolaevich Pak

Vyacheslav Nikolaevich Pak 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).

  • Patent number: 5883041
    Abstract: A composite active phase/support catalyst for purifying exhaust gases, the active phase of which comprises a solid solution of transition metals oxides with a spinel structure of the formula AB.sub.2 O.sub.4 wherein "A" comprises a combination of metals with their stoichiometric indexes being in the range Zn.sub.0.18-0.21 Cd.sub.0.18-0.21 Co.sub.0.18-0.63 Fe.sub.0.02-0.46 and "B" also comprises the combination of transition metals with their stoichiometric indexes being in the range Cu.sub.0.09-0.36 Ni.sub.0.09-0.11 Cr.sub.0.24-0.48 Fe.sub.0.28-0.34. The support comprises an oxide carrier coated with oxide layer having a spinel structure of the formula Cu.sub.0.33 Co.sub.0.33 Ni.sub.0.33 Al.sub.2 O.sub.4 whereas the amount of the active phase per support surface lies in the range 10-12 .mu.Moles of AB.sub.2 O.sub.4 per 1m.sup.2 of support surface.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: March 16, 1999
    Assignee: Connolly International Ltd.
    Inventors: Vyacheslav Nikolaevich Pak, Vladimir Borisovich Kopylov