Patents by Inventor Clifford Hubbard

Clifford Hubbard 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).

  • Paraelectric thin film material and method statement of government interest
    Patent number: 6803134
    Abstract: A dielectric thin film material and method of preparation in which precursors are provided to form barium strontium titanate with lanthanum (La) added as a dopant. The precursors and La dopant are mixed with a solvent forming a solution which is deposited on a substrate to form a continuous film composition. In various embodiments, the dielectric thin film has a composition of (1-y)Ba0.6Sr0.4TiO3−(y)La, where y=0 to 10-mol. The thin film material has dielectric and insulating properties suitable for tunable microwave applications.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: October 12, 2004
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Melanie W. Cole, Clifford Hubbard, Eric Ngo
  • Sion low dielectric constant ceramic nanocomposite
    Patent number: 5677252
    Abstract: A ceramic nanocomposite made from silicon, oxygen and nitrogen is provided hich has a very low dielectric constant, low dielectric loss along with good strength and hardness. The ceramic nanocomposite finds use in millimeter-wave radomes and microwave radomes used on aircraft which must resist erosion from high speed impact with water, ice and dust in the atmosphere.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: October 14, 1997
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Gary Gilde, Parimal Patel, Clifford Hubbard, Brian Pothier, Thomas Hynes, William Croft, Joe Wells