Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5151136 | Low aspect ratio lithium-containing aluminum extrusions | Jeffrey Witters, Roberto J. Rioja | 1992-09-29 |
| 4861391 | Aluminum alloy two-step aging method and article | Roberto J. Rioja, Edward L. Colvin, Asuri K. Vasudevan | 1989-08-29 |