Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6767410 | Use of an amphoteric polymer to treat a hard surface | Dominic Wai-Kwing Yeung | 2004-07-27 |
| 6703358 | Cleaning composition for hard surfaces | Gladys Saliba Gabriel, Dominic Wai-Kwing Yeung | 2004-03-09 |