Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6402786 | Four compartment knee | John N. Insall, Mark A. Heldreth, Steve Zawadski, Roy Y. Hori, Kyoko Ohkuni +2 more | 2002-06-11 |
| 6123729 | Four compartment knee | John N. Insall, Mark A. Heldreth, Steve Zawadski, Roy Y. Hori, Kyoko Ohkuni +2 more | 2000-09-26 |