Patents by Inventor Stefan Ioan Voicu

Stefan Ioan Voicu 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).

  • Matrix nanocomposite containing aminocarbon nanotubes for carbon dioxide sensor detection
    Patent number: 7913541
    Abstract: The design and synthesis of a matrix nanocomposite containing amino carbon nanotubes used as a functionalized sensing layer for carbon dioxide detection by means acoustic wave sensing devices, e.g., SAW/BAW devices. These sensing materials contain a type of amino carbon nanotubes (single walled or multi-walled) and a polymer (or other compounds) which are sensitive to carbon dioxide in the acoustic wave sensing device based gas sensors. The sensitivity of the matrix consisting of the amino carbon nanotubes and a polymer (or other compounds) is ensured by the presence of amino groups which can react at room temperature with CO2 in a reversible process to form carbamates.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: March 29, 2011
    Assignee: Honeywell International Inc.
    Inventors: Bogdan Catalin Serban, Cornel P. Cobianu, Mircea Bercu, Nicolae Varachiu, Mihai N. Mihaila, Cazimir G. Bostan, Stefan Ioan Voicu