Patents by Inventor Igor I. Papirov

Igor I. Papirov 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: 7393359
    Abstract: The invention relates to a radially expandable multi-layer tubular structure which is intended to be used as a stent and to the production method thereof. The inventive structure comprises an outer layer (1) and an inner layer (2) which are solidly connected to one another. One of the aforementioned layers (2) is provided with hollow channels (3) through the thickness thereof while the other layer is provided with perforations (4). Said channels (3) can be used to alter the mechanical properties of the stent and to house a medicament for the local treatment of the vessel in which the stent is disposed.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: July 1, 2008
    Assignee: Endosense SA
    Inventors: Vitali E. Verin, Igor I. Papirov
  • Patent number: 6146322
    Abstract: A filament for irradiating a living body has a core material capable of irradiating radioactive radiation clad in a tubular casing of protective material different from the material forming the core. The materials forming the core and casing have a purity not less than 99.5 atomic percent and a grain size not exceeding 30 .mu.m and the outer diameter of the filament is not less than 80 .mu.m.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: November 14, 2000
    Assignee: Schneider (Europe) AG
    Inventors: Igor I. Papirov, Anatolij I. Pikalov, Vladimir S. Shokurov, Sergej V. Sivtzov, Youri G. Popowski, Vitali E. Verin