Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4955152 | Steam ironing press | Donald R. Davidson, Pao-Ter Huang | 1990-09-11 |
| 4953300 | Steam ironing press | Donald R. Davidson, Pao-Ter Huang | 1990-09-04 |
| 4922637 | Steam ironing press #1 | Donald R. Davidson, Pao-Ter Huang | 1990-05-08 |