Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8591982 | Highly refined fiber mass, process of their manufacture and products containing the fibers | Brock Lundberg | 2013-11-26 |
| 7094317 | Process of manufacturing and using highly refined fiber mass | Brock Lundberg | 2006-08-22 |
| 5901541 | Corn stover collection apparatus | — | 1999-05-11 |
| 4994019 | Magnetic occluding device | Mario F. Fernandez, Loren R. Keldahl, Paul L. Miller | 1991-02-19 |
| 4846818 | Incontinence appliance | Loren R. Keldahl | 1989-07-11 |
| 4730736 | Hanger strip for art prints | Mark E. Quale | 1988-03-15 |