Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6680109 | Pyrogenically produced aluminum oxide | Volker Hamm, Thomas Scharfe, Helmut Mangold, Thomas Hennig | 2004-01-20 |
| 6063354 | Pyrogenic oxides and a process for their preparation | Helmut Mangold, Ingo Pauli, Karlheinz Janzon | 2000-05-16 |