William J. Ryan

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Underhill, VT, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and methods for monitoring and testing coolant recirculat...
- Patent number 6,678,628
- Issue date Jan 13, 2004
- William J. Ryan
- G01 - MEASURING TESTING
Information Patent Grant
Fluorescence authentication reader with coaxial optics
- Patent number 5,666,417
- Issue date Sep 9, 1997
- Angstrom Technologies, Inc.
- Louis H. Liang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Fluorescence authentication reader with coaxial optics
- Patent number 5,574,790
- Issue date Nov 12, 1996
- Angstrom Technologies, Inc.
- Louis H. Liang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Methods and apparatus for authenticating data storage articles
- Patent number 5,548,106
- Issue date Aug 20, 1996
- Angstrom Technologies, Inc.
- Louis H. Liang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Authentication system and method
- Patent number 5,418,855
- Issue date May 23, 1995
- Angstrom Technologies, Inc.
- Louis H. Liang
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and methods for monitoring and testing coolant recirculat...
- Publication number 20030139894
- Publication date Jul 24, 2003
- William J. Ryan
- G01 - MEASURING TESTING
Information Patent Application
Portable authentication fluorescence scanner employing single and m...
- Publication number 20030080193
- Publication date May 1, 2003
- William J. Ryan
- G06 - COMPUTING CALCULATING COUNTING