Stephanie Petrakos

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Boulder, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Dual dialing mode wireless telephone
- Patent number 6,868,281
- Issue date Mar 15, 2005
- Qwest Communications Int'l., Inc.
- Stephanie Petrakos
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for generating information-bearing audible tones
- Patent number 6,731,935
- Issue date May 4, 2004
- Qwest Communications International Inc.
- Stephanie Petrakos
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for generating information-bearing audible tones
- Patent number 6,594,491
- Issue date Jul 15, 2003
- Qwest Communications International Inc.
- Stephanie Petrakos
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Method and system for generating information-bearing audible tones
- Publication number 20030104811
- Publication date Jun 5, 2003
- Qwest Communications International Inc.
- Stephanie Petrakos
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND SYSTEM FOR GENERATING INFORMATION-BEARING AUDIBLE TONES
- Publication number 20010053706
- Publication date Dec 20, 2001
- STEPHANIE PETRAKOS
- H04 - ELECTRIC COMMUNICATION TECHNIQUE