Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6770779 | Process for preparing alkylphosphonite esters | Norbert Weferling, Martin Sicken, Gunter Kolbe | 2004-08-03 |
| 6727335 | Polymeric phosphinic acids and salts thereof | Martin Sicken, Norbert Weferling | 2004-04-27 |