Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12104013 | Method for preparing polyesters | Rainer Linke | 2024-10-01 |
| 11427677 | Process and apparatus for preparing biodegradable polyesters | Michael Reisen, Rainer Linke, Reza Sarbandi | 2022-08-30 |
| 11254785 | Process for preparing polyesters by using an additive | Holger Bachmann, Rainer Linke, Michael Reisen, Reza Sarbandi | 2022-02-22 |
| 9504978 | Cooled reactor for the production of dimethyl ether from methanol | Bernd Ahlers, Manuela Gil De Tober | 2016-11-29 |
| 8871961 | Process for production of biodiesel | Rudolf Boensch, Norbert Palauschek, Helmut Saft | 2014-10-28 |
| 8846561 | Catalyst for the production of polyester, use of the catalyst for the production of polyester, and polyester obtained by the use of the catalyst | Brigitta Otto | 2014-09-30 |
| 8647396 | Process and plant for producing biodiesel | Rudolf Boensch, Helmut Saft | 2014-02-11 |
| 8604228 | Method for purifying fatty acid alkyl ester greatly loaded with saponification products | Rudolf Bönsch, Helmut Saft | 2013-12-10 |
| 8580987 | Method for reprocessing biodiesel sludge | Rudolf Bönsch, Ute Raab-Brill | 2013-11-12 |
| 8063122 | Mixture, polyester composition, film and procedures for their manufacture | Brigitta Otto, Karl-Heinz Heldmann | 2011-11-22 |
| 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, Holger Bachmann | 2008-06-03 |
| 7335410 | Composition and process for manufacturing polyester | Brigitta Otto, Thomas Steinbrecher | 2008-02-26 |
| 7241855 | Method for the manufacture of polyesters | Stefan Deiss, Michael Reisen, Karl-Heinz Heldmann | 2007-07-10 |
| 7223471 | Polytrimethylene terephthalate resins with improved properties | Bernd Gemmel, Karl-Heinz Heldmann | 2007-05-29 |
| 7029748 | Polytrimethylene terephthalate resins with improved properties | Bernd Gemmel, Karl-Heinz Heldmann | 2006-04-18 |
| 6967235 | Method for the production of polybutylene terephthalate | Fritz Wilhelm | 2005-11-22 |
| 6800718 | Process for producing polytrimethylene terephthalate (PTT) | Fritz Wilhelm, Hans Reitz, Ulrich Thiele, Klaus Mackensen, Donald R. Kelsey +2 more | 2004-10-05 |
| 6512080 | Process of producing polytrimethylene terephthalate (PTT) | Donald R. Kelsey, Robert Lawrence Blackbourn, Robert Stephen Tomaskovic, Hans Reitz, Fritz Wilhelm | 2003-01-28 |
| 6509438 | Optimum dipropylene glycol content polytrimethylene terephthalate compositions | Donald R. Kelsey, Betty Marrou Scardino, Kailash Dangayach, Houston Brown, Hans Reitz +1 more | 2003-01-21 |
| 6326456 | Process of producing polytrimethylene terephthalate (PTT) | Donald R. Kelsey, Robert Lawrence Blackbourn, Robert Stephen Tomaskovic, Hans Reitz, Fritz Wilhelm | 2001-12-04 |
| 6277947 | Process of producing polytrimethylene terephthalate (PTT) | Donald R. Kelsey, Robert Lawrence Blackbourn, Robert Stephen Tomaskovic, Hans Reitz, Fritz Wilhelm | 2001-08-21 |