Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8775410 | Method for using dual indices to support query expansion, relevance/non-relevance models, blind/relevance feedback and an intelligent search interface | — | 2014-07-08 |
| 8620900 | Method for using dual indices to support query expansion, relevance/non-relevance models, blind/relevance feedback and an intelligent search interface | — | 2013-12-31 |
| 8538999 | String lookup using three-transition tree structure | Wai Tak Wong | 2013-09-17 |
| 8150891 | System for IP address lookup using substring and prefix matching | Wai Tak Wong | 2012-04-03 |
| 7797348 | Data structure and system for IP address lookup and IP address lookup system | Wai Tak Wong | 2010-09-14 |
| 6976025 | Database and method for storing a searchable set of keywords | Wai Chung Yip | 2005-12-13 |