Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6332570 | Flat transparent magnifying envelope | — | 2001-12-25 |
| 4982511 | Process and apparatus for kiln-drying malt | — | 1991-01-08 |
| 4600561 | Method and device for separating harmful substances from a flue gas | — | 1986-07-15 |
| 4414882 | Pneumatic drive for switching elements and control elements | — | 1983-11-15 |
| 4295522 | Process for the production of a tubular heat exchanger, and a tubular heat exchanger produced according to this process | — | 1981-10-20 |
| 4224982 | Tubular heat exchanger | — | 1980-09-30 |