Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4339346 | Bituminous emulsions | Johann G. D. Schulz | 1982-07-13 |
| 4332695 | Hydrocarbon emulsions | Johann G. D. Schulz | 1982-06-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4339346 | Bituminous emulsions | Johann G. D. Schulz | 1982-07-13 |
| 4332695 | Hydrocarbon emulsions | Johann G. D. Schulz | 1982-06-01 |