Doug Conyers

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San Antonio, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Telephony security system
- Patent number 7,440,558
- Issue date Oct 21, 2008
- Securelogix Corporation
- Craig Heilmann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephony security system
- Patent number 6,760,420
- Issue date Jul 6, 2004
- Securelogix Corporation
- Craig Heilmann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Tightly integrated cooperative telecommunications firewall and scan...
- Patent number 6,226,372
- Issue date May 1, 2001
- Securelogix Corporation
- Todd Beebe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Telephony security system
- Publication number 20040234056
- Publication date Nov 25, 2004
- SecureLogix Corporation
- Craig Heilmann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Telephony security system
- Publication number 20020021791
- Publication date Feb 21, 2002
- Craig Heilmann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Tightly integrated cooperative telecommunications firewall and scan...
- Publication number 20010014150
- Publication date Aug 16, 2001
- Todd Beebe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE