Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10837590 | Pipeline pig retrieval apparatus | Marvin Duke | 2020-11-17 |
| 6896175 | Carton divider | Norman Duke | 2005-05-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10837590 | Pipeline pig retrieval apparatus | Marvin Duke | 2020-11-17 |
| 6896175 | Carton divider | Norman Duke | 2005-05-24 |