Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6809174 | Process for reclaiming residual ethylene in the preparation of vinyl ethylene copolymers | Hans-Peter Weitzel | 2004-10-26 |
| 6770722 | Process for preparing protective-colloid-stabilized polymers by continuous emulsion polymerization | Hans-Peter Weitzel | 2004-08-03 |