Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8017717 | Method of producing polyesters | Fritz Wilhelm, Ludwig Hoelting, Peter Seidel, Peter Reichwein | 2011-09-13 |
| 7998420 | Method and device for producing vacuum in the production of polyesters and copolyesters | Gerald Kriesche | 2011-08-16 |