Authentication Technologies, Inc.

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Dublin, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Wide edge lead currency thread detection system
- Patent number 5,810,146
- Issue date Sep 22, 1998
- Authentication Technologies, Inc.
- Steven K. Harbaugh
- G07 - CHECKING-DEVICES
Information Patent Grant
Detector for a security thread having at least two security detecti...
- Patent number 5,535,871
- Issue date Jul 16, 1996
- Authentication Technologies, Inc.
- Steven K. Harbaugh
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Currency paper security thread verification device
- Patent number 5,419,424
- Issue date May 30, 1995
- Authentication Technologies, Inc.
- Steven K. Harbaugh
- G07 - CHECKING-DEVICES
Information Patent Grant
Capacitive verification device for a security thread embedded withi...
- Patent number 5,417,316
- Issue date May 23, 1995
- Authentication Technologies, Inc.
- Steven K. Harbaugh
- G07 - CHECKING-DEVICES
Information Patent Grant
Capacitance-based verification device for a security thread embedde...
- Patent number 5,394,969
- Issue date Mar 7, 1995
- Authentication Technologies, Inc.
- Steven K. Harbaugh
- G06 - COMPUTING CALCULATING COUNTING