Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7514001 | High recovery reverse osmosis process and apparatus | Lawrence C. Costa | 2009-04-07 |
| 5174954 | Palladium alloys for dental implant restorations | Stephen P. Schaffer, Bernt-Roger Gustafsson | 1992-12-29 |
| 4943483 | Palladium alloy containing gold, silver, gallium, germanium and/or lithium and dental restorations utilizing same | Clyde E. Ingersoll, Stephen P. Schaffer | 1990-07-24 |
| 4917861 | Palladium alloy containing germanium and/or lithium and dental restorations utilizing same | Stephen P. Schaffer | 1990-04-17 |