Patents by Inventor T. Roger Ogden

T. Roger Ogden 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).

  • Erasable optical memory material from a ferroelectric polymer
    Patent number: 4731754
    Abstract: An electro-optic memory effect providing for storing, erasing and rewriting igital information relies upon a ferroelectric polymer, polyvinylidene fluoride. Recent development of tri-fluoroethylene copolymers of this material with Curie temperatures below the melting point provides a means of selective writing, storage and erasure. The advantage of the polyvinylidene fluoride material for optical recording is its high chemical and physical stability. This material provides a mechanism for bit-by-bit erasure and long time storage of information.
    Type: Grant
    Filed: September 12, 1985
    Date of Patent: March 15, 1988
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: T. Roger Ogden, Debra M. Gookin
  • Stabilizer for submerged gaseous jets in liquids
    Patent number: H1624
    Abstract: The invention is a passive control technique effective in eliminating reverse flow instability. The invention preferably includes two flow stabilizers each preferably having a planar face. The flow stabilizers are disposed at an exit end of an injector so that the planar faces oppose each other and diverge in a direction normal to the flow of the gas passing through the injector.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: January 7, 1997
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: T. Roger Ogden, Eric W. Hendricks