Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5597452 | Method of restoring heating walls of coke oven battery | Werner Hippe, Martin Reinke | 1997-01-28 |
GM
Gunter Meyer
Overall (1997): #146,328 of 185,788Top 80%
1
Patents 1997