Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12059688 | Method and apparatus for continuous magnetic filtration of ferrous mill scale from liquid solutions | Craig Eric Seidelson, Mark H. Dickerhoof | 2024-08-13 |
| 9556564 | Structure for railroad ties having data acquisition, processing and transmission means | Torben Djerf | 2017-01-31 |
| 8727228 | Structure for railroad ties having data acquisition, processing and transmission means | Torben Djerf | 2014-05-20 |
| 8728376 | Restoring and recycling railroad ties | Torben Djerf | 2014-05-20 |
| 8632644 | Bamboo composite timbers | Torben Djerf | 2014-01-21 |