Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6468001 | Method for redeveloping or renovating sewer drains and sewer ducts | — | 2002-10-22 |
| 6358220 | Thermoplastic casting material and method for production thereof | Gunter Langen, Marita Meister | 2002-03-19 |