Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11313069 | Stain removal accessory | Kannan Udayappan Praveen, Yile Liao, Chien-Ping Adrian Koh, Lihong Zhao, Yong Jiang | 2022-04-26 |
| 10947660 | Portable stain removal device | Chien-Ping Adrian Koh, Palani Pandurangan, Hee Poh Sin, Lihong Zhao, Yong Jiang +1 more | 2021-03-16 |