Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4296043 | Process for the preparation of benzanthrones | — | 1981-10-20 |
| 4183853 | 1-[p-(2-Trialkylammonium)propylsulfonylphenyl]-3-(phenyl)-pyrazoline salts | Carl-Wolfgang Schellhammer | 1980-01-15 |