Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871759 | Method of treatment of mesenteric adenitis | — | 1989-10-03 |
| 4865113 | Countergravity casting apparatus and process for casting thin-walled parts | Karl D. Voss, Gary F. Ruff | 1989-09-12 |
| 4862945 | Vacuum countergravity casting apparatus and method with backflow valve | Anthony C. Greanias | 1989-09-05 |
| 4825933 | Countergravity casting apparatus | Karl D. Voss | 1989-05-02 |
| 4809767 | Countergravity casting apparatus | Karl D. Voss, Anthony C. Greanias | 1989-03-07 |