Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839143 | Selective ionization of gas constituents using electrolytic reactions | Donald N. Campbell, Robert C. Davis, Glenn E. Spangler, Julio A. Reategui | 1989-06-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839143 | Selective ionization of gas constituents using electrolytic reactions | Donald N. Campbell, Robert C. Davis, Glenn E. Spangler, Julio A. Reategui | 1989-06-13 |