Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8614352 | Method for producing color-stable MDA and MDI | Eckhard Stroefer, Heiner Schelling, Michael Zoellinger, Daniel Breuninger, Markus Kraemer +2 more | 2013-12-24 |
| 5549421 | Method and apparatus for conveying ice lumps | Richard M. Humphreys | 1996-08-27 |
| 5354152 | Method and apparatus for conveying ice lumps | Richard M. Humphreys | 1994-10-11 |