Roger A. Chang

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Irving, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Graphical end-user interface for intelligent assistants
- Patent number 5,727,174
- Issue date Mar 10, 1998
- International Business Machines Corporation
- Manuel Aparicio
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System and method for computer aided software engineering
- Patent number 5,428,729
- Issue date Jun 27, 1995
- International Business Machines Corporation
- Roger A. Chang
- G06 - COMPUTING CALCULATING COUNTING