Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4892705 | Method of producing vapor for use in a vapor sterilizing process | Hans J. Sternfeld, Karlheinz Wolfmuller, Rodhardt Froese | 1990-01-09 |
| 4687053 | Heat exchanger panel and manufacturing method thereof | Norbert Fromel | 1987-08-18 |
| 4423120 | Laminating method and article | Norbert Fromel | 1983-12-27 |