Roger G. Johnston

Person

  • Las Alamos, NM, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic vector field tag and seal

    • Patent number 6,784,796
    • Issue date Aug 31, 2004
    • The Regents of the University of Califronia
    • Roger G. Johnston
    • G08 - SIGNALLING
  • Information Patent Grant

    Enhanced tamper indicator

    • Patent number 6,588,812
    • Issue date Jul 8, 2003
    • The Regents of the University of California
    • Anthony R. E. Garcia
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Tamper-indicating device having a glass body

    • Patent number 6,553,930
    • Issue date Apr 29, 2003
    • The Regents of the University of California
    • Roger G. Johnston
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Triboluminescent tamper-indicating device

    • Patent number 6,394,022
    • Issue date May 28, 2002
    • The Regents of the University of California
    • Roger G. Johnston
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Fluid sampling tool

    • Patent number 6,293,163
    • Issue date Sep 25, 2001
    • The Regents of the University of California
    • Roger G. Johnston
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Fluid sampling tool

    • Patent number 6,065,488
    • Issue date May 23, 2000
    • The Regents of the University of California
    • Anthony R. Garcia
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Fluid sampling tool

    • Patent number 5,907,110
    • Issue date May 25, 1999
    • The Regents of the University of California
    • Anthony R. Garcia
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Method for establishing the presence of salmonella bacteria in eggs

    • Patent number 5,426,977
    • Issue date Jun 27, 1995
    • The Regents of the University of California
    • Roger G. Johnston
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Apparatus and method for performing two-frequency interferometry

    • Patent number 4,906,095
    • Issue date Mar 6, 1990
    • The United States of America as represented by the United States Department o...
    • Roger G. Johnston
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Interferometric apparatus and method for detection and characteriza...

    • Patent number 4,764,013
    • Issue date Aug 16, 1988
    • The United States of America as represented by the United States Department o...
    • Roger G. Johnston
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Counterfeit detection

    • Publication number 20070198569
    • Publication date Aug 23, 2007
    • The Regents of the University of California.
    • Roger G. Johnston
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Magnetic vector field tag and seal

    • Publication number 20020171547
    • Publication date Nov 21, 2002
    • Roger G. Johnston
    • G08 - SIGNALLING