Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5792140 | Catheter having cooled multiple-needle electrode | Hosheng Tu | 1998-08-11 |
| 5782900 | Catheter system having safety means | Alan de la Rama, Hosheng Tu | 1998-07-21 |
| D384743 | Exchangeable catheter handle for inserting a catheter shaft | — | 1997-10-07 |
| 4824123 | Mechanical face seal for rock bits | George F. Anderson | 1989-04-25 |
| 4822057 | Mechanical face seal for rock bits | George F. Anderson | 1989-04-18 |
| 4687067 | Crossflow rotary cone rock bit with extended nozzles | Richard D. Smith, Michael S. Oliver, Richard D. Crouse | 1987-08-18 |
| 4378853 | Cavitation nozzle plate adapter for rock bits | Robert S. Forrest | 1983-04-05 |