Patents by Inventor Brenda M. Simpson

Brenda M. Simpson 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).

  • Bacteriorhodopsin preparations having increased information storage times
    Patent number: 6140012
    Abstract: Bacteriorhodopsin materials and matrices are crosslinked with each other to enhance optical data storage lifetimes.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: October 31, 2000
    Assignee: Bend Research, Inc.
    Inventors: Daniel T. Smithey, Brenda M. Simpson
  • Phosphazene polymer containing composites and method for making phosphazene polymer containing composites
    Patent number: H1309
    Abstract: A composite is produced by first coating a reinforcing material with an inorganic phosphazene compound and then polymerizing the phosphazene compound so as to confer superior thermal, physical and chemical resistance qualities to the composite.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: May 3, 1994
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Charles A. Allen, Alan E. Grey, Robert R. McCaffrey, Brenda M. Simpson, Mark L. Stone