Patents by Inventor C. Hoff

C. Hoff 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).

  • Publication number: 20070279953
    Abstract: An energy delivery system includes at least one string of two or more energy delivery modules electrically coupled in series. Each energy delivery module includes one or more energy delivery devices for storing and delivering electrical current, and a module monitor for monitoring and controlling each of the energy delivery devices. Each string of energy delivery modules includes a string communication path accessible to each of the energy delivery modules, wherein the module monitor of each energy delivery module is operable to communicate information associated with its energy delivery module through the string communication path. Each string also includes a string manager device for communicating with each module monitor in the string, through the string communication path. The energy delivery system also includes a system controller for communicating with each string manager device through a system communication path.
    Type: Application
    Filed: May 15, 2007
    Publication date: December 6, 2007
    Applicant: A123 System, Inc.
    Inventors: C. Hoff, Benjamin Shaffer, Greg Tremelling, Jonah Myerberg, Ricardo Fulop, Andrew Chu
  • Publication number: 20070269685
    Abstract: A compact, robust, multifunctional and highly manufacturable rechargeable cylindrical electrochemical cell is provided. In some embodiments, a cell can include a spirally wound assembly having an anode sheet and a cathode sheet separated by separator membranes, each sheet having a electroactive layer on a current collector. At least one of the current collectors can be in electrical communication with conducting tabs that extend from at least one of the anode sheet and the cathode sheet, the conducting tabs extends from an end face of the spirally wound assembly. The centers of the plurality of conducting tabs can be located within a 90 degree quadrant of an end face of the spirally wound assembly.
    Type: Application
    Filed: May 14, 2007
    Publication date: November 22, 2007
    Applicant: A123 SYSTEMS, INC.
    Inventors: Andrew CHU, Antoni GOZDZ, Gilbert RILEY, C. HOFF
  • Publication number: 20070025347
    Abstract: One aspect relates to a communication protocol for communicating between one or more entities, such as devices, hosts or any other system capable of communicating over a network. A protocol is provided that allows communication between entities without a priori knowledge of the communication protocol. In such a protocol, for example, information describing a data structure of the communication protocol is transferred between communicating entities. Further, an authentication protocol is provided for providing bidirectional authentication between communicating entities. In one specific example, the entities include a master device and a slave device coupled by a serial link. In another specific example, the communication protocol may be used for performing unbalanced transmission between communicating entities.
    Type: Application
    Filed: August 1, 2005
    Publication date: February 1, 2007
    Inventors: Daniel Cohen, James Spitaels, David Colucci, Matthew Bush, C. Hoff, Robert Backofen, Vishwas Deokar