Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7931883 | Silicon feedstock for solar cells | Erik Enebakk, Kenneth Friestad, Ragnar Tronstad, Christian Dethloff | 2011-04-26 |
| 7381392 | Silicon feedstock for solar cells | Erik Enebakk, Kenneth Friestad, Ragnar Tronstad, Christian Dethloff | 2008-06-03 |