Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683148 | Brake pipe pneumatic valve | Wei Li | 1997-11-04 |
| 5639047 | Railroad signal with remote light source | James P. Chew | 1997-06-17 |
| 4511666 | Process for producing beta'-silicon aluminum oxynitride (B'-SiAlON) | Frankie E. Phelps, Robert L. Troup | 1985-04-16 |