Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5614161 | Crystalline sheet sodium silicate | Gunther Schimmel | 1997-03-25 |
JW
Jan Wilkens
Overall (1997): #133,787 of 185,788Top 75%
1
Patents 1997