Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10929616 | Topic based conversation retrieval | Messaoud Benantar, David Yu Chang, Liam Harpur | 2021-02-23 |
| 10897463 | Managing and securing manageable resources in stateless web server architecture using servlet filters | David Yu Chang, John Y. Chang | 2021-01-19 |