Patents by Inventor Archana Kar

Archana Kar 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).

  • Bioceramic coated apparatus and method of forming the same
    Patent number: 7998568
    Abstract: The invention relates to a bioceramic coated apparatus and method of forming the same. The apparatus may be a medical implant such as, for example, an orthopedic implant or a dental implant. The bioceramic coating is designed to increase tissue and/or bone growth upon implantation of the apparatus. The apparatus has a valve metal substrate having a nanoporous valve metal oxide surface layer. The nanoporous surface layer contains a plurality of nanopores. The nanopores have adsorbed phosphate ions on at least their interior surfaces. A bioceramic coating is formed on the nanoporous surface and anchored into the nanopores. Optionally, the nanopores are formed into a tapered shape in order to increase adhesion to the bioceramic coating.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: August 16, 2011
    Assignee: Board of Regents of the Nevada System of Higher Education, on Behalf of the University of Nevada, Reno
    Inventors: Krishnan Selva Raja, Manoranjan Misra, Archana Kar
  • BIOCERAMIC COATED APPARATUS AND METHOD OF FORMING THE SAME
    Publication number: 20090082865
    Abstract: The invention relates to a bioceramic coated apparatus and method of forming the same. The apparatus may be a medical implant such as, for example, an orthopedic implant or a dental implant. The bioceramic coating is designed to increase tissue and/or bone growth upon implantation of the apparatus. The apparatus has a valve metal substrate having a nanoporous valve metal oxide surface layer. The nanoporous surface layer contains a plurality of nanopores. The nanopores have adsorbed phosphate ions on at least their interior surfaces. A bioceramic coating is formed on the nanoporous surface and anchored into the nanopores. Optionally, the nanopores are formed into a tapered shape in order to increase adhesion to the bioceramic coating.
    Type: Application
    Filed: June 27, 2005
    Publication date: March 26, 2009
    Applicant: UNIVERSITY OF NEVADA, RENO
    Inventors: Krishnan Selva Raja, Manoranjan Misra, Archana Kar