Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5855452 | Method for excavating rock cavities | — | 1999-01-05 |
| 4725164 | Method of excavating a storage complex in rock for storing radioactive waste | — | 1988-02-16 |
| 4708523 | Rock cavity | Per G. Persson | 1987-11-24 |
| 4363563 | System for the storage of petroleum products and other fluids in a rock | Tore J. Hallenius | 1982-12-14 |
| 4192629 | System for the storage of radioactive material in rock | Tore J. Hallenius | 1980-03-11 |