Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6139509 | Graduated bone graft harvester | Hansen Yuan, Peter Stutz, Serafin Samson | 2000-10-31 |
| 5833628 | Graduated bone graft harvester | Hansen Yuan, Peter Stutz, Serafin Samson | 1998-11-10 |
| 5267155 | Apparatus and method for computer-assisted document generation | Ken Buchanan | 1993-11-30 |
| 5148366 | Computer-assisted documentation system for enhancing or replacing the process of dictating and transcribing | Ken Buchanan | 1992-09-15 |