Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6422240 | Oral/nasal cannula | Gershon Levitsky, Joshua Lewis Colman | 2002-07-23 |
| 5360494 | Method for alloying lithium with powdered magnesium | — | 1994-11-01 |
| 5232659 | Method for alloying lithium with powdered aluminum | — | 1993-08-03 |
| 4569822 | Powder metal process for preparing computer disk substrates | Robert W. Hill | 1986-02-11 |
| 4265680 | Method for making hollow magnetic pipe | Robert J. Pelser, Lewis M. Pelser, Robert W. Hill, Robert G. Fischer | 1981-05-05 |