Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8925133 | Portable floor sweeper | Wai Cheong Lee, Raymon Wai Man Wong | 2015-01-06 |
| 7496984 | Floor cleaning apparatus with elongate handle and handle extension | — | 2009-03-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8925133 | Portable floor sweeper | Wai Cheong Lee, Raymon Wai Man Wong | 2015-01-06 |
| 7496984 | Floor cleaning apparatus with elongate handle and handle extension | — | 2009-03-03 |