Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4915213 | Arrangement in a belt conveyor | Jan A. T. Loodberg, Olle L. Siwersson | 1990-04-10 |
| 4905920 | Milling device | Olle L. Siwersson, Jan A. T. Loodberg | 1990-03-06 |
| 4803932 | Burner for a suspension of fine-grained coal in liquid | Olle L. Siwersson, Jan A. T. Loodberg | 1989-02-14 |
| 4724952 | Single-belt conveyor | Jan A. T. Loodberg | 1988-02-16 |
| 4603774 | Vertical conveyor for bulk goods | Olle L. Siwersson | 1986-08-05 |
| 4561596 | Apparatus for spreading granular material | Olle L. Siwersson, Kent Kristensson | 1985-12-31 |
| 4467910 | Vertical conveyor for bulk goods | Olle L. Siwersson | 1984-08-28 |
| 4217109 | Composition comprising a pulverized purified substance, water and a dispersing agent, and a method for preparing the composition | Olle L. Siwersson, Jan A. T. Loodberg | 1980-08-12 |
| 4194615 | Apparatus for unloading loose particulate solid material | Karl Gunnar Tell, Olle L. Siwersson | 1980-03-25 |