Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8899883 | Anchor tendon with selectively deformable portions | Ming Cai | 2014-12-02 |
| 8485758 | Yieldable cone bolt and method of manufacturing same | Ming Cai | 2013-07-16 |
| 7632045 | Detachable anchor bolt mixing head for use in mine roof support systems and method of using same | Yaokun Wu | 2009-12-15 |