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).

  • Biodegradable multilayer nanocapsules for the delivery of biologically active agents in target cells
    Patent number: 11957794
    Abstract: The present invention relates to a biodegradable multilayer nanocapsule for the delivery of at least one biologically active agent into at least one target cell consisting of at least two layers of at least two biodegradable polymers which are laid one onto the other and whereby the biologically active agent is layered onto a layer of a biodegradable polymer and covered with a further layer of a biodegradable polymer, whereby one biologically active agent is a nucleic acid.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: April 16, 2024
    Assignees: Albert-Ludwigs-Universitaet Freiburg, Queen Mary University of London
    Inventors: Gleb Sukhorukov, Irina Nazarenko, Yana Tarakanchikova, Toni Cathomen, Tatjana Cornu, Valentina Pennucci, Jamal Alzubi
  • Halogen exchange reactions
    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