Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842901 | Coating solution and process for producing glassy layers | Werner Graf | 1989-06-27 |
HM
Hans-Joachim Merrem
Overall (1989): #108,132 of 140,708Top 80%
1
Patents 1989