Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4434133 | System for the production of ketene and methylene from carbonate minerals | Michael G. Down, D. Colin Phillips | 1984-02-28 |
| 4428905 | System for the production of ketene and methylene from limestone utilizing a solid electrolyte electrolysis cell | D. Colin Phillips, Arnold O. Isenberg, Michael G. Down | 1984-01-31 |
| 4219712 | High compression puffer circuit interrupter | — | 1980-08-26 |
| 4213022 | Two-pressure type circuit interrupter | — | 1980-07-15 |