Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4666603 | Semi-permeable membrane liquid filtration apparatus including elliptical blocking means | Rud F. Madsen, Aksel F. Johnsen | 1987-05-19 |
| 4432806 | Method of purifying sugar juice prepared by extraction of a sugar beet material | Rud F. Madsen, Steen Kristensen | 1984-02-21 |
| 4326892 | Method of improving the recovery of sugar from sugar beets by extraction on and apparatus for carrying out said method | Rud F. Madsen | 1982-04-27 |