Ping Song

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Atlanta, GA, US

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Patents Grantslast 30 patents

Information Patent Grant
Automatically sequentially ringing alternative telephone numbers
- Patent number 7,711,102
- Issue date May 4, 2010
- AT&T Intellectual Property I, L.P.
- James A. Worsham
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatically sequentially ringing alternative telephone numbers
- Patent number 7,194,080
- Issue date Mar 20, 2007
- BellSouth Intellectual Property Corporation
- James A. Worsham
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Automatically Sequentially Ringing Alternative Telephone Numbers
- Publication number 20070165827
- Publication date Jul 19, 2007
- BellSouth Intellectual Property Corporation
- James A. Worsham
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Automatically sequentially ringing alternative telephone numbers
- Publication number 20030002645
- Publication date Jan 2, 2003
- James A. Worsham
- H04 - ELECTRIC COMMUNICATION TECHNIQUE