Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315865 | Process for the production of sulfuric acid semiester compounds by sulfation in a machine employing kneading action | Ernst Hoyer, Hans H. Steuernagel | 1982-02-16 |
DW
Dieter Wagner
Overall (1982): #69,166 of 81,411Top 85%
1
Patents 1982