Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853146 | Thickening compositions and thickened aqueous acid solutions | Hans Rorig | 1989-08-01 |
| 4842771 | Thickened aqueous cleaning compositions | Hans Rorig | 1989-06-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853146 | Thickening compositions and thickened aqueous acid solutions | Hans Rorig | 1989-08-01 |
| 4842771 | Thickened aqueous cleaning compositions | Hans Rorig | 1989-06-27 |