Patents by Inventor Stephen N. Stiles

Stephen N. Stiles 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).

  • Ballistic modifier formulation for double base propellant
    Patent number: 8864923
    Abstract: A double base propellant modifier uses a combination of a lead component, a tin component and a copper component in physical contact to effect super-rate burning of double base propellants with defined plateau and mesa burning rate characteristics.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: October 21, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Stephen N. Stiles, Paul R. McCool
  • Ballistic modification and solventless double base propellant, and process thereof
    Patent number: 8828161
    Abstract: A double base propellant modifier uses a lead-tin component with a defined amount of lead and a copper component with a defined surface area to effect super-rate burning of double base propellants with defined plateau and mesa burning rate characteristics.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: September 9, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Stephen N. Stiles, Paul R. McCool
  • High-density rocket propellant
    Patent number: 8545646
    Abstract: The present disclosure relates to a high-density rocket propellant and associated recoilless launching systems and methods with tungsten powder added providing substantial mass to the propellant for additional impulse, absorption of sound, optimization of back blast and carry weight, and the like. In an exemplary embodiment, the high-density rocket propellant includes tungsten mass percentages of between about 70%-about 80%, equivalent to about 17%-about 26% by volume.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: October 1, 2013
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Matthew J. Sanford, Randolph T. Johnson, Paul G. Wallman, Diana O. Bragunier, Stephen N. Stiles
  • Methods of making double base casting powder
    Patent number: 7842144
    Abstract: The invention relates to a novel process for the production of casting powder with high ntirocellulose content, and casting multiple-base rocket propellant including nitroglycerin formulated from such casting powder.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: November 30, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Stephen N. Stiles, John Luense