Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D944895 | Scannable answer sheet | Thomas Edgar Howell, David Phelps Pratt-Robson, Diogo Wahnon Silva Teixeira de Brito | 2022-03-01 |
| D885479 | Scannable answer sheet | Thomas Edgar Howell, David Phelps Pratt-Robson, Diogo Wahnon Silva Teixeira de Brito | 2020-05-26 |