Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864075 | Dithiocarbamates for treating hydrocarbon recovery operations and industrial waters | Robert G. Asperger | 1989-09-05 |
| 4843176 | Compounds containing sulfur and amino groups | Derek Redmore, Bernardus A. Oude Alink, Benjamin T. Outlaw | 1989-06-27 |
| 4826625 | Methods for treating hydrocarbon recovery operations and industrial waters | Robert G. Asperger | 1989-05-02 |