Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5350877 | Process for the improved production of (meth)acrylic acid esters of polyhydric alcohols (I) | Wolfgang Ritter, Ludwig Speitkamp | 1994-09-27 |
| 5278336 | Process for exchanging inhibitor(s) in olefinically unsaturated systems which are reactive via free radicals | Wolfgang Ritter | 1994-01-11 |