Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859440 | Method of treating flue gases and combustion residues | Franz Zechner | 1989-08-22 |
| 4586940 | Process and apparatus for a recovery of heat comprising a heat-recovering absorption of water vapor from gases | — | 1986-05-06 |