Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7117702 | Mobile pipe mill | — | 2006-10-10 |
| 7089772 | Adjustable horn for spiral pipe forming machine | Bradley Norman Miller | 2006-08-15 |
| 4220181 | Multi-layer pipe with single corrugation in inner wall | — | 1980-09-02 |