Patents by Inventor Tatjana Nazarenko

Tatjana Nazarenko 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: 5824827
    Abstract: An essentially anhydrous agitated mixture of (i) finely-divided essentially anhydrous alkali metal fluoride (e.g., KF), (ii) haloaromatic compound having at least one halogen atom of atomic number greater than 9 on an aromatic ring (e.g., C.sub.6 Cl.sub.6), and (iii) an aminophosphonium catalyst (e.g., (Et.sub.2 N).sub.4 PBr), is heated at a temperature at which fluorine replaces one or more of the ring halogen atom of the haloaromatic compound.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: October 20, 1998
    Assignee: Albemarle Corporation
    Inventors: Igor Bildinov, Pavel Podsevalov, Tatjana Nazarenko, Leonid Deev