Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ricardo Manuel Negrão Valente | — | 2 |
| 1 | Pedro Teófilo Alves Moreira | Metalúrgica Recor, S.A. | 2 |
| 1 | Esmeralda Goncalves | Metalúrgica Recor, S.A. | 2 |
| #4 | Joaquim Gomes de Oliveira | Metalúrgica Recor, S.A. | 1 |