Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7177908 | System and method for managing multimedia messaging platforms | Jack H. Chang | 2007-02-13 |
| 7010574 | System and method for managing multimedia messaging platforms | Jack H. Chang | 2006-03-07 |
| 6381633 | System and method for managing multimedia messaging platforms | Jack H. Chang | 2002-04-30 |
| 6118864 | System and method for providing communication on a wide area network | Jack H. Chang | 2000-09-12 |
| 5974449 | Apparatus and method for providing multimedia messaging between disparate messaging platforms | Jack H. Chang | 1999-10-26 |
| 5471523 | Telephone call and voice processing system | Bernard J. Smith, David B. Seager, Thomas E. Rowley | 1995-11-28 |