Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D308551 | Game board | — | 1990-06-12 |
| 4760169 | Process for the preparation of hydroxymethylenealkoxyacetic acid esters | Fritz Maurer | 1988-07-26 |
| 4754035 | Preparation of 2-alkylsulphonylalkylenepyrimidines | Josef Heinrich | 1988-06-28 |
| 4713490 | Process for the preparation of alkylthioacetamidines | Hans P. Sehnem | 1987-12-15 |