Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5240395 | Mold stripping equipment for manufacture of prestressed concrete poles | William A. Muller | 1993-08-31 |
| 5178887 | Compound fluted mold for casting prestressed concrete lamp poles | William A. Muller | 1993-01-12 |