Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7462020 | Concrete pump with pivotable hopper asssembly | — | 2008-12-09 |
| 6821097 | Concrete pump with S-tube valve assembly with wear ring-spring-retainer ring construction | — | 2004-11-23 |
| 6305916 | Concrete pump with pivotable hopper assembly | — | 2001-10-23 |
| 4241641 | Pilot assembly for hydraulic pumps | — | 1980-12-30 |