Patents by Inventor John A deVos

John A deVos 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).

  • Conductive patterning
    Patent number: 7569331
    Abstract: Various embodiments of a method, coating and system for conductive patterning are disclosed.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: August 4, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: William Dorogy, Sterling Chaffins, Michael J Day, John A deVos, Makarand P. Gore, Andrew L. Van Brocklin, Douglas R. Houck, David M. Kwasny
  • Regulated hydrogen production system
    Patent number: 7544431
    Abstract: A production system includes a reaction chamber having an inlet and outlet, a gas collection chamber coupled with the reaction chamber and a regulator coupled to the gas collection chamber. The regulator controls the flow of reactant to the reaction chamber in response to the pressure in the gas collection chamber.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: June 9, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John A deVos, Louis Barinaga, Suraj L Hindagolla
  • Fuel storage devices and apparatus including the same
    Patent number: 7489859
    Abstract: A fuel storage device in accordance with a present invention includes a fuel storage area and at least one of a fuel heater, a byproduct heater and a valve.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: February 10, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John A deVos, James E. Clark
  • Gas generation system
    Patent number: 7201782
    Abstract: A gas generation system includes a chemical reactor configured to produce a gas from a continuous flow of aqueous solution, and includes a pump configured to control the flow of the aqueous solution through the chemical reactor to control a production rate of the gas.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: April 10, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: John A Devos
  • Electronic identification label and interrogator for use therewith
    Patent number: 7014112
    Abstract: A method of conveying information from an electronic identification label to an interrogator includes coupling energy from an external field into a resonant circuit of the electronic identification label. The method also includes the electronic identification label periodically storing and discharging an amount of the coupled energy wherein the period that the electronic identification label stores and discharges the energy conveys information about the electronic identification label to the interrogator.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: March 21, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John A deVos, Chinmay Betrabet, Jian-gang Weng, Daniel Robert Blakley, Olan Way