Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11447604 | Method for the separation of volatile compounds from viscous products by means of a thin-film evaporator, and polylactide resin | Rainer Hagen | 2022-09-20 |
| 10414917 | Process and apparatus for preparation of a crystallizable polylactic acid mixture, and polylactic acid mixture | Rainer Hagen, Caspar Paetz | 2019-09-17 |
| 10322358 | Device and method for separating a cyclic diester from polymer melts | Rainer Hagen | 2019-06-18 |
| 9416222 | Quality test for polymerizable lactic acid and method for producing same | Joachim Schulze, Rainer Hagen, Wolfgang Tietz, Shashank Ghanegaonkar, Willi Techlin | 2016-08-16 |
| 8957229 | Method for the production of a mixture of lactide derivatives | Rainer Hagen, Adam B. Verweij, Joachim Schulze, Wolfgang Tietz, Klaus Göhler | 2015-02-17 |
| 8940910 | Cleaning device for separating dilactide from mixtures, polymerisation device, method for separating dilactide from mixtures and use thereof | Rainer Hagen | 2015-01-27 |
| 8702852 | Condensation and washing device, polymerisation device and method for cleaning process steam during the production of polylactide | Rainer Hagen | 2014-04-22 |
| 8569517 | Cleaning device for separating dilactide from mixtures, polymerisation device, method for separating dilactide from mixtures and use thereof | Rainer Hagen | 2013-10-29 |
| 8430948 | Condensation and washing device, polymerisation device and method for cleaning process steam during the production of polylactide | Rainer Hagen | 2013-04-30 |
| 8399602 | Polymerisation reactor, polymerisation device, method for producing bio-degradeable polyester and uses | Rainer Hagen | 2013-03-19 |
| 8362282 | Method for storing and transporting cyclic diesters | Rainer Hagen | 2013-01-29 |