Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5326362 | Method of surface hardening orthopedic implant devices | Walter H. Ottersberg, Jack E. Parr, Roy D. Crowninshield | 1994-07-05 |
| 5323954 | Method of bonding titanium to a cobalt-based alloy substrate in an orthophedic implant device | Mark A. Heldreth, Jack E. Parr | 1994-06-28 |
| 5308412 | Method of surface hardening cobalt-chromium based alloys for orthopedic implant devices | Walter H. Ottersberg | 1994-05-03 |