Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5366500 | One-piece bifocal intraocular lens construction | Richard H. Keates | 1994-11-22 |
| 5344448 | Multi-focal intra-ocular implant | Richard H. Keates | 1994-09-06 |
| 5325804 | Fuel-efficient watercraft with improved speed, stability, and safety characteristics | — | 1994-07-05 |