Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6737174 | Corrosion resistant sucker rods | Lelio Alberto Gawantka Da Silva | 2004-05-18 |
| 6723384 | Corrosion resistant sucker rods | Lelio Alberto Gawantka Da Silva | 2004-04-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6737174 | Corrosion resistant sucker rods | Lelio Alberto Gawantka Da Silva | 2004-05-18 |
| 6723384 | Corrosion resistant sucker rods | Lelio Alberto Gawantka Da Silva | 2004-04-20 |