Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663444 | Preparation of a pure dialkylaminoethanol stable against discoloration | Johann-Peter Melder, Gunther Ruider, Tom Witzel, Gunter Boettger | 1997-09-02 |
KR
Karl-Heinz Ross
Overall (1997): #121,999 of 185,788Top 70%
1
Patents 1997