Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7685143 | Unified logging service for distributed applications | Alex Kwok Kee Tsui, Paul Chen, Michael George Polan | 2010-03-23 |
| 5702222 | Electrically driven car lift apparatus for home use | — | 1997-12-30 |
| 5145304 | Height adjustable vehicle parking apparatus | — | 1992-09-08 |
| 5035562 | Tri-level vehicular parking apparatus | — | 1991-07-30 |
| 4772172 | Low profile vehicle parking apparatus | — | 1988-09-20 |
| 4209276 | Vehicle parking apparatus | — | 1980-06-24 |