Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6062228 | Biodegradable filter material and method for its manufacture | Harald Schmidt | 2000-05-16 |
| 5897944 | Molded part made of starch foamed material | Winfried Pommeranz, Harald Schmidt | 1999-04-27 |
| 5006140 | Process for the manufacture of mineral fibre compositions | Horst Neisius | 1991-04-09 |