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Roger G. Johnston
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Las Alamos, NM, US
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Patents Grants
last 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 Applications
last 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