Patents by Inventor Deepa Narayanan

Deepa Narayanan 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: 7901661
    Abstract: A process for making a hydrogenated carbon material is provided which includes forming a mixture of a carbon source, particularly a carbonaceous material, and a hydrogen source. The mixture is reacted under reaction conditions such that hydrogen is generated and/or released from the hydrogen source, an amorphous diamond-like carbon is formed, and at least a portion of the generated and/or released hydrogen associates with the amorphous diamond-like carbon, thereby forming a hydrogenated carbon material. A hydrogenated carbon material including a hydrogen carbon clathrate is characterized by evolution of molecular hydrogen at room temperature at atmospheric pressure in particular embodiments of methods and compositions according to the present invention.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: March 8, 2011
    Assignee: The Penn State Research Foundation
    Inventors: Angela Lueking, Deepa Narayanan
  • Patent number: 7754179
    Abstract: Methods of synthesizing a diamond material, particularly nanocrystalline diamond, diamond-like carbon and bucky diamond are provided. In particular embodiments, a composition including a carbon source, such as coal, is subjected to addition of energy, such as high energy reactive milling, producing a milling product enriched in hydrogenated tetrahedral amorphous diamond-like carbon compared to the coal. A milling product is treated with heat, acid and/or base to produce nanocrystalline diamond and/or crystalline diamond-like carbon. Energy is added to produced crystalline diamond-like carbon in particular embodiments to produce bucky diamonds.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: July 13, 2010
    Assignee: The Penn State Research Foundation
    Inventors: Angela Lueking, Humberto Gutierrez, Deepa Narayanan, Caroline E. Burgess Clifford, Puja Jain
  • Publication number: 20070148080
    Abstract: Methods of synthesizing a diamond material, particularly nanocrystalline diamond, diamond-like carbon and bucky diamond are provided. In particular embodiments, a composition including a carbon source, such as coal, is subjected to addition of energy, such as high energy reactive milling, producing a milling product enriched in hydrogenated tetrahedral amorphous diamond-like carbon compared to the coal. A milling product is treated with heat, acid and/or base to produce nanocrystalline diamond and/or crystalline diamond-like carbon. Energy is added to produced crystalline diamond-like carbon in particular embodiments to produce bucky diamonds.
    Type: Application
    Filed: December 20, 2006
    Publication date: June 28, 2007
    Applicant: The Penn State Research Foundation
    Inventors: Angela Lueking, Humberto Gutierrez, Deepa Narayanan, Caroline Burgess Clifford, Dirk Van Essendelft, Puja Jain
  • Publication number: 20070144063
    Abstract: A process for making a hydrogenated carbon material is provided which includes forming a mixture of a carbon source, particularly a carbonaceous material, and a hydrogen source. The mixture is reacted under reaction conditions such that hydrogen is generated and/or released from the hydrogen source, an amorphous diamond-like carbon is formed, and at least a portion of the generated and/or released hydrogen associates with the amorphous diamond-like carbon, thereby forming a hydrogenated carbon material. A hydrogenated carbon material including a hydrogen carbon clathrate is characterized by evolution of molecular hydrogen at room temperature at atmospheric pressure in particular embodiments of methods and compositons according to the present invention.
    Type: Application
    Filed: December 20, 2006
    Publication date: June 28, 2007
    Applicant: The Penn State Research Foundation
    Inventors: Angela Lueking, Deepa Narayanan
  • Publication number: 20070078674
    Abstract: A network-enabled method and system for polling individuals about attributes of features that may be present on an image is provided. The system enables a user to indicate a region-of-interest, or to otherwise graphically indicate the location and extent of a feature, on an image. Information relating to the user's choice of location of the feature then appears in a dynamic questionnaire, thus permitting the user to efficiently describe the attributes of each feature, while recording the location and extent of the feature that the user is describing. The content of the user's responses to the questionnaire, and the record of location and extent of the features that the user has referenced, are transmitted to a server for recording and later analysis.
    Type: Application
    Filed: July 19, 2006
    Publication date: April 5, 2007
    Inventors: Irving Weinberg, Edward Anashkin, Deepa Narayanan, William Peter
  • Publication number: 20040081135
    Abstract: Managing data packet routing includes receiving data packets and determining available communication links, which include heterogeneous communication links. One or more of the available communication links are selected in accordance with one or more rules. A virtual path is generated from the selected available communication links, and the data packets are communicated along the virtual path.
    Type: Application
    Filed: May 30, 2003
    Publication date: April 29, 2004
    Inventors: Richard E. Ewing, James A. Wall, Jose?apos; Salinas, Lawrence S. Goats, Deepa Narayanan