Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6368389 | Method for separating vaporous phthalic acid anhydride from a gas stream | Gerhard Birke, Volker Franz | 2002-04-09 |
| 6352572 | Process for the thermal treatment of granulated iron ore prior to the reduction | Ali-Naghi Beyzavi | 2002-03-05 |