Patents by Inventor E. Joseph Charlson

E. Joseph Charlson 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).

  • Electrically variable multi-state resistance computing
    Patent number: 6473332
    Abstract: An electrically operated, overwritable, multivalued, non-volatile resistive memory element is disclosed. The memory element includes a two terminal non-volatile memory device in which a memory film material is included, and a circuit topological configuration is defined. The memory device relates generally to a unique new electrically induced variable resistance effect, which has been discovered in thin films of colossal magnetoresistive (CMR) oxide materials.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: October 29, 2002
    Assignee: The University of Houston System
    Inventors: Alex Ignatiev, Naijuan Wu, Shangqing Liu, E. Joseph Charlson