Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7464758 | Model HCCV hydrostatic closed circulation valve | Joseph C. H. Yeo, Anthony Orchard, Keith E. Lewis | 2008-12-16 |
| 7063152 | Model HCCV hydrostatic closed circulation valve | Joseph C. H. Yeo, Anthony Orchard, Keith E. Lewis | 2006-06-20 |