Patents by Inventor Sam Hartman

Sam Hartman 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).

  • Data Repository and Method for Promoting Network Storage of Data
    Publication number: 20100185855
    Abstract: In general, the invention features methods by which more than one client program connected to a network stores the same data item on a storage device of a data repository connected to the network. In one aspect, the method comprises encrypting the data item using a key derived from the content of the data item, determining a digital fingerprint of the data item, and storing the data item on the storage device at a location or locations associated with the digital fingerprint. In a second aspect, the method comprises determining a digital fingerprint of the data item, testing for whether the data item is already stored in the repository by comparing the digital fingerprint of the data item to the digital fingerprints of data items already in storage in the repository, and challenging a client that is attempting to deposit a data item already stored in the repository, to ascertain that the client has the full data item.
    Type: Application
    Filed: March 30, 2010
    Publication date: July 22, 2010
    Inventors: Norman H. Margolus, Thomas F. Knight, JR., Bruce M. Boghosian, Jered J. Floyd, Sam Hartman, George E. Homsy, II, Gill A. Pratt
  • Data repository and method for promoting network storage of data
    Patent number: 7506173
    Abstract: In general, the invention features methods by which more than one client program connected to a network stores the same data item on a storage device of a data repository connected to the network. In one aspect, the method comprises encrypting the data item using a key derived from the content of the data item, determining a digital fingerprint of the data item, and storing the data item on the storage device at a location or locations associated with the digital fingerprint. In a second aspect, the method comprises determining a digital fingerprint of the data item, testing for whether the data item is already stored in the repository by comparing the digital fingerprint of the data item to the digital fingerprints of data items already in storage in the repository, and challenging a client that is attempting to deposit a data item already stored in the repository, to ascertain that the client has the full data item.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: March 17, 2009
    Assignee: Burnside Acquisition, LLC
    Inventors: Norman H. Margolus, Thomas F. Knight, Jr., Jered J. Floyd, Sam Hartman, George E. Homsy, II
  • Data repository and method for promoting network storage of data
    Patent number: 7412462
    Abstract: In general, the invention features methods by which more than one client program connected to a network stores the same data item on a storage device of a data repository connected to the network. In one aspect, the method comprises encrypting the data item using a key derived from the content of the data item, determining a digital fingerprint of the data item, and storing the data item on the storage device at a location or locations associated with the digital fingerprint. In a second aspect, the method comprises determining a digital fingerprint of the data item, testing for whether the data item is already stored in the repository by comparing the digital fingerprint of the data item to the digital fingerprints of data items already in storage in the repository, and challenging a client that is attempting to deposit a data item already stored in the repository, to ascertain that the client has the full data item.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: August 12, 2008
    Assignee: Burnside Acquisition, LLC
    Inventors: Norman H. Margolus, Thomas F. Knight, Jr., Jered J. Floyd, Sam Hartman, George E. Homsy, II
  • Data repository and method for promoting network storage of data
    Publication number: 20040255140
    Abstract: In general, the invention features methods by which more than one client program connected to a network stores the same data item on a storage device of a data repository connected to the network. In one aspect, the method comprises encrypting the data item using a key derived from the content of the data item, determining a digital fingerprint of the data item, and storing the data item on the storage device at a location or locations associated with the digital fingerprint. In a second aspect, the method comprises determining a digital fingerprint of the data item, testing for whether the data item is already stored in the repository by comparing the digital fingerprint of the data item to the digital fingerprints of data items already in storage in the repository, and challenging a client that is attempting to deposit a data item already stored in the repository, to ascertain that the client has the full data item.
    Type: Application
    Filed: June 17, 2004
    Publication date: December 16, 2004
    Applicant: Permabit, Inc.
    Inventors: Norman H. Margolus, Thomas F. Knight, Bruce M. Boghosian, Jered J. Floyd, Sam Hartman, George E. Homsy, Gill A. Pratt
  • Data repository and method for promoting network storage of data
    Publication number: 20020038296
    Abstract: In general, the invention features methods by which more than one client program connected to a network stores the same data item on a storage device of a data repository connected to the network. In one aspect, the method comprises encrypting the data item using a key derived from the content of the data item, determining a digital fingerprint of the data item, and storing the data item on the storage device at a location or locations associated with the digital fingerprint. In a second aspect, the method comprises determining a digital fingerprint of the data item, testing for whether the data item is already stored in the repository by comparing the digital fingerprint of the data item to the digital fingerprints of data items already in storage in the repository, and challenging a client that is attempting to deposit a data item already stored in the repository, to ascertain that the client has the full data item.
    Type: Application
    Filed: February 16, 2001
    Publication date: March 28, 2002
    Inventors: Norman H. Margolus, Thomas F. Knight, Bruce M. Boghosian, Jered J. Floyd, Sam Hartman, George E. Homsy, Gill A. Pratt