Patents by Inventor Sam R. Walker

Sam R. Walker 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).

  • Crystal growth method for Y-Ba-Cu-O compounds
    Patent number: 5057487
    Abstract: Methods of growing Y-Ba-Cu-O compound crystal by suspended pellet partial melting and cooling and by skill melting, with crystal pulling after nucleation on a small platinum wedge or epitaxial growth on an inserted substrate.
    Type: Grant
    Filed: October 29, 1987
    Date of Patent: October 15, 1991
    Assignee: Texas Instruments Incorporated
    Inventors: Sidney G. Parker, Sam R. Walker