Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5215594 | Process for cleaning surfaces of interior parts in two-stage flue gas desulfurization plants | Helmut Welp, Reinhard Widzogowski | 1993-06-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5215594 | Process for cleaning surfaces of interior parts in two-stage flue gas desulfurization plants | Helmut Welp, Reinhard Widzogowski | 1993-06-01 |