Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10960494 | Method and device for producing a tear line in a planar workpiece along a predetermined contour by material removal by means of a laser | Walter Lutze, Martin Griebel, Frank Seidel | 2021-03-30 |
| 6797670 | Microcapsules having polyurea walls | Martin Kleban, Gunter Klug | 2004-09-28 |
| 6586107 | Microcapsules having polyurea walls | Gunter Klug | 2003-07-01 |
| 6020066 | Microcapsules using iminooxadiazinedione polyisocyanates | Frank Richter, Carl-Gerd Dieris, Wolfgang Krohn | 2000-02-01 |
| 5650102 | Process for microencapsulation using oil-soluble emulsifiers | Manfred Hagedorn, Peter-Roger Nyssen | 1997-07-22 |
| 5635211 | Microcapsules having walls made of polyisocyanate/guanidine reaction products | Ulrich Nehen | 1997-06-03 |
| 5552365 | Pressure-sensitive recording material which comprises natural oils and/or derivatives thereof | Horst Berneth, Gunter Klug | 1996-09-03 |
| 5342556 | Microcapsules made of isocyanates with groups containing polyethylene oxide | Harro Traubel, Helmut Reiff | 1994-08-30 |
| 4439409 | Crystalline aluminosilicate PSH-3 and its process of preparation | Lothar Puppe | 1984-03-27 |