Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11254785 | Process for preparing polyesters by using an additive | Rainer Linke, Eckhard Seidel, Michael Reisen, Reza Sarbandi | 2022-02-22 |
| 7977448 | Method for producing highly condensed solid-phase polyesters | Brigitta Otto, Hans Reitz, Klaus Kirsten | 2011-07-12 |
| 7547406 | Method for the direct and continuous production of hollow articles from a polymer melt | Brigitta Otto, Roland Schafer, Ludwig Holting, Stefan Deiss | 2009-06-16 |
| 7521522 | Method and device to reduce the acetaldehyde content of polyester granulate | Brigitta Otto, Rainer Linke, Roland Schafer | 2009-04-21 |
| 7381787 | Polytrimethylene terephthalate having a low level of acrolein and a process for producing the same | Donald R. Kelsey, Cecilia Zuqi Tse, Robert Lawrence Blackbourn, Eckhard Seidel | 2008-06-03 |
| 7084235 | Method of producing highly condensed polyester granulate | Brigitta Otto, Roland Schafer | 2006-08-01 |