Top Inventors at Sigma Enterprises All Time
Showing 1–9 of 9 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Rene Xavier Filho | 28 |
| 2 | Simone Rodrigues Oliveira Xavier | 27 |
| 3 | Larry K. Spencer | 4 |
| 3 | Takashi Hagiwara | 4 |
| #5 | Katsuki Manabe | 3 |
| #6 | Clyde Donald Wilson | 1 |
| #6 | Simone Oliveira Rodrigues Xavier | 1 |
| #6 | Takahashi Hagiwara | 1 |
| #6 | Robert Vanlangendonck | 1 |