Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8088266 | Electrodialysis method for purifying of silicate-containing potassium hydroxide etching solution | Curtis Dove, Goang-Cheng Chang | 2012-01-03 |
| 7541095 | Non-chromium containing black multi-layer coatings | Wan C. Wu, Wen-Chi Chang | 2009-06-02 |