Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4351779 | Process for the production of methylaminomethylphosphonic acid esters | — | 1982-09-28 |
| 4322375 | 2-Substituted 5-phenoxyphenylphosphonic acid derivatives | Dieter Durr | 1982-03-30 |