Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10768158 | Electrochemical detector | A. L. Roy Vellaisamy, Chi-Chung Yeung, Michael H. W. Lam, Kam-Sing Chung | 2020-09-08 |
| 10258925 | Emissions treatment apparatus and a method for treating emissions | Roy A. L. Vellaisamy, Joseph Chung Tak Wong | 2019-04-16 |