Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6420598 | Process for preparing alkylphosphonic acids | Norbert Weferling, Martin Sicken | 2002-07-16 |
| 6388125 | Process for preparing phosphinic acids | Martin Sicken | 2002-05-14 |
| 6359171 | Process for preparing dialkylphosphinic acids and their salts | Norbert Weferling, Martin Sicken, Gunter Kolbe | 2002-03-19 |
| 6355832 | Processing for preparing salts of dialkylphosphinic acids | Norbert Weferling, Gunter Kolbe | 2002-03-12 |