Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7819942 | Solid-phase polycondensation of polyester with process gas purification | Andreas Christel | 2010-10-26 |
| 7683156 | Production of a high-molecular polycondensate | Andreas Christel | 2010-03-23 |
| 6548031 | Method for purifying a gas stream | Urs Georg Naef, Camille Borer | 2003-04-15 |