Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871426 | Process for reprocessing waste material | Hans Lechert, Song Qun, Walter Kaminsky, Hansjorg Sinn | 1989-10-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871426 | Process for reprocessing waste material | Hans Lechert, Song Qun, Walter Kaminsky, Hansjorg Sinn | 1989-10-03 |