Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4361336 | Epoxy-concrete coated pipe | Hans-Christoph Jerofke, Friedrich Kramer | 1982-11-30 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4361336 | Epoxy-concrete coated pipe | Hans-Christoph Jerofke, Friedrich Kramer | 1982-11-30 |