Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9552968 | Plasma cleaning apparatus and method | Martin Deehan, Matt Cheng-Hsiung Tsai, David T. Or, Mei Chang | 2017-01-24 |
| 8721796 | Plasma cleaning apparatus and method | Martin Deehan, Matt Cheng-Hsiung Tsai, David T. Or, Mei Chang | 2014-05-13 |
| 8252696 | Selective etching of silicon nitride | Xinliang Lu, Haichun Yang, Zhenbin Ge, David T. Or, Chien-Teh Kao +1 more | 2012-08-28 |
| 6953474 | Multifunctional cool and hot compress bag | — | 2005-10-11 |
| D492215 | Electronic article surveillance device | — | 2004-06-29 |