Patents by Inventor Kudumboor V. Rao

Kudumboor V. Rao 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).

  • Intermetallic magnetically readable medium
    Patent number: 8771846
    Abstract: An intermetallic or iron aluminide magnetically readable medium and a method of forming and reading the same are provided herein. Also provided is an identification card or tag, a key, an anti-counterfeiting measure, an anti-forging measure. The intermetallic or iron aluminide magnetically readable medium includes a magnetically readable surface, wherein the magnetically readable surface contains one or more first magnetically readable regions of the intermetallic or iron aluminide surrounded by one or more second magnetically readable regions. Additionally, the intermetallic or iron aluminide magnetically readable medium can be coated, encapsulated or concealed within a material.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: July 8, 2014
    Assignee: Philip Morris USA Inc.
    Inventors: Seetharama C. Deevi, Kudumboor V. Rao, Valter Ström, Ziyan Gu
  • Systems and methods for measuring local magnetic susceptibility including one or more balancing elements with a magnetic core and a coil
    Patent number: 7405555
    Abstract: A local magnetic susceptibility unit is adapted to measure the AC magnetic susceptibility of a surface region of a sample. The unit comprises a sensing element and one or more balancing elements arranged in a circuit. When a sample is placed proximate to the sensing element the sample induces an imbalance voltage in the circuit.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: July 29, 2008
    Assignee: Philip Morris USA Inc.
    Inventors: Kudumboor V. Rao, Valter Ström, Ziyan Gu, Seetharama C. Deevi