Deanna D. Willoughby

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Colorado Springs, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Call blocking based on call properties
- Patent number 6,763,098
- Issue date Jul 13, 2004
- MCI Communications Corporation
- Curtis E. Allen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transaction billing for special service telephone numbers
- Patent number 6,522,734
- Issue date Feb 18, 2003
- MCI WorldCom, Inc.
- Curtis E. Allen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE