Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6258952 | Thermally stable trimetrexates and processes for producing the same | Martin Stogniew, Johann Peter Morsdorf | 2001-07-10 |
| 6140334 | Polymorphic form of doxazosin mesylate (form III) | Johann Peter Morsdorf | 2000-10-31 |
| 6133269 | Polymorphic form of doxazosin mesylate (form II) | Johann Peter Morsdorf | 2000-10-17 |
| 6130218 | Polymorphic form of doxazosin mesylate (Form I) | Johann Peter Morsdorf | 2000-10-10 |
| 6017922 | Thermally stable trimetrexates and processes for producing the same | Martin Stogniew, Johann Peter Morsdorf | 2000-01-25 |
| 6017921 | Crystalline trimetrexate salts and the process for making the same | Paul E. Kennedy, Johann Peter Morsdorf, Kurt H. Ahrens | 2000-01-25 |
| 5716960 | Crystalline trimetrexate salts and the process for making the same | Paul E. Kennedy, Johann Peter Morsdorf, Kurt H. Ahrens | 1998-02-10 |
| 4978773 | Process for the preparation of 2,6-dichlorodiphenylaminoacetic acid derivatives | Helmut Schickaneder, Kurt H. Ahrens | 1990-12-18 |
| 4973755 | Stable solvent adducts of Z-1-(p-.beta.-dimethylaminoethoxy-phenyl)-1-(p-hydroxyphenyl)-2-phenyl-b ut-1-ene | Helmut Schickaneder, Peter W. Jungblut, Kurt H. Ahrens | 1990-11-27 |
| 4816455 | Crystalline, anhydrous sigma-form of 2-(4-(2-furoyl)-(2-piperazin)-1-yl)-4-amino-6,7-dimethoxy-quinazoline hydrochloride and a process for its preparation | Helmut Schickaneder, Kurt H. Ahrens | 1989-03-28 |
| 4697035 | Process for the preparation of basically substituted phenylacetonitriles | Lothar Kisielowski, Walter Liebenow, Kurt H. Ahrens | 1987-09-29 |