Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11427677 | Process and apparatus for preparing biodegradable polyesters | Rainer Linke, Eckhard Seidel, Reza Sarbandi | 2022-08-30 |
| 11254785 | Process for preparing polyesters by using an additive | Holger Bachmann, Rainer Linke, Eckhard Seidel, Reza Sarbandi | 2022-02-22 |
| 8143367 | Method for the esterification of terephtalic acid with butanediol, method for the manufacture of polybutylene terephtalate and a device therefor | Fritz Wilhelm | 2012-03-27 |
| 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 |
| 7550116 | Method for producing polyesters and a disk ring reactor for the method | Fritz Wilhelm, Ludwig Holting, Peter Seidel, Peter Reichwein | 2009-06-23 |
| 7244806 | Method and device for the continuous production of polyesters | Fritz Wilhelm | 2007-07-17 |
| 7241855 | Method for the manufacture of polyesters | Stefan Deiss, Karl-Heinz Heldmann, Eckhard Seidel | 2007-07-10 |
| 7153927 | Process of continuously producing polyesters or copolyesters | Fritz Wilhelm | 2006-12-26 |
| 7084234 | Method and device for producing polyesters, copolyesters and polycarbonates | Fritz Wilhelm | 2006-08-01 |