Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5011413 | Machine-interpretable figural response testing | John J. Ferris, Winton H. Manning, Michael E. Martinez | 1991-04-30 |
| 4978305 | Free response test grading method | — | 1990-12-18 |