Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4617089 | Apparatus for discharging high viscosity media in chemical engineering | Martin Ullrich, Frank Wingler | 1986-10-14 |
| 4318773 | Process for the concentration of solutions with simultaneous setting | Martin Ullrich, Karl-Friedrich Jerchel | 1982-03-09 |
| 4181788 | Process for the production of thermoplastic molding materials based on vinyl polymers | Frank Wingler, Lothar Liebig, Gerd Wassmuth, Martin Ullrich | 1980-01-01 |