David C. Cheng

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Plano, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Statistical diagnosis in interactive voice response telephone system
- Patent number 5,822,401
- Issue date Oct 13, 1998
- InterVoice Limited Partnership
- Ellis K. Cave
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for statistical diagnosis of the operation of an...
- Patent number 5,740,233
- Issue date Apr 14, 1998
- InterVoice Limited Partnership
- Ellis K. Cave
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
System and method for defining and inserting metadata attributes in...
- Publication number 20070203927
- Publication date Aug 30, 2007
- Intervoice Limited Partnership
- Ellis K. Cave
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
System and method for retrieving files from a file server using fil...
- Publication number 20070203875
- Publication date Aug 30, 2007
- Intervoice Limited Partnership
- Ellis K. Cave
- G06 - COMPUTING CALCULATING COUNTING