Stephen T. Walker

Person

Glenwood, MD, US

People

Patents Grantslast 30 patents

Information Patent Grant
System and method for controlling access to a user secret using a k...
- Patent number 6,272,632
- Issue date Aug 7, 2001
- Network Associates, Inc.
- David W. Carman
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System and method for data recovery
- Patent number 5,991,406
- Issue date Nov 23, 1999
- Network Associates, Inc.
- Steven B. Lipner
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for access field verification
- Patent number 5,956,403
- Issue date Sep 21, 1999
- Network Association, Inc.
- Steven B. Lipner
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for controlling access to a user secret
- Patent number 5,745,573
- Issue date Apr 28, 1998
- Trusted Information Systems, Inc.
- Steven B. Lipner
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for access field verification
- Patent number 5,640,454
- Issue date Jun 17, 1997
- Trusted Information Systems, Inc.
- Steven B. Lipner
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for key escrow encryption
- Patent number 5,557,346
- Issue date Sep 17, 1996
- Trusted Information Systems, Inc.
- Steven B. Lipner
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for data recovery
- Patent number 5,557,765
- Issue date Sep 17, 1996
- Trusted Information Systems, Inc.
- Steven B. Lipner
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for controlling the use of a computer
- Patent number 5,361,359
- Issue date Nov 1, 1994
- Trusted Information Systems, Inc.
- Homayoon Tajalli
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data protection for computer systems
- Patent number 4,962,533
- Issue date Oct 9, 1990
- Texas Instrument Incorporated
- Steven D. Krueger
- G06 - COMPUTING CALCULATING COUNTING

Stephen T. Walker

Person

Patents Grantslast 30 patents

System and method for controlling access to a user secret using a k...

System and method for data recovery

System and method for access field verification

System and method for controlling access to a user secret

System and method for access field verification

System and method for key escrow encryption

System and method for data recovery

System and method for controlling the use of a computer

Data protection for computer systems