Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6541118 | Insulator having a porcelain body and a hydrophobic coating | Alfred Baalmann, Johannes Liebermann, Klaus-Dieter Vissing | 2003-04-01 |
| 6497923 | Method for producing an electrical insulator | Alfred Baalmann, Johannes Liebermann, Klaus-Dieter Vissing | 2002-12-24 |