Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4261176 | Thermodynamic assembly | — | 1981-04-14 |
| 4223240 | Flywheel set for accumulating kinetic energy of rotation | — | 1980-09-16 |
| 4182480 | Centrifuge for separating helium from natural gas | Fridtjof E. T. Kelling | 1980-01-08 |