Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842835 | Process of purifying flue gases | Karl-Heinz Dorr, Hugo Grimm, Heinz Neumann, Wolfgang Fennemann | 1989-06-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842835 | Process of purifying flue gases | Karl-Heinz Dorr, Hugo Grimm, Heinz Neumann, Wolfgang Fennemann | 1989-06-27 |