Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8034864 | Opaque plastics | Markus Schum | 2011-10-11 |
| 7390842 | Pigment composition for plastics | Emil Aust, Hans Jurgen Brehm | 2008-06-24 |
| 7019048 | Plastic part comprising lustrous pigments and filler particles | Hans Jurgen Brehm, Emil Aust | 2006-03-28 |
| 6545065 | Laser-markable plastics | Hans-Jürgen Solms | 2003-04-08 |
| 6451102 | Pigment modification improving handling characteristics | Robin Hilder | 2002-09-17 |
| 6441059 | Agricultural method and materials for screening solar radiation | Gerhard Edler, Tony Daponte, Patrick Corneel Mathilde Verschaeren | 2002-08-27 |
| 6417250 | Formulations | Alfred Hennenmann | 2002-07-09 |
| 6409815 | Surface-modified conductive pigment | Alfred Hennemann | 2002-06-25 |
| 6241382 | Method for producing powder lacquer containing gloss pigments | Otto Stahlecker | 2001-06-05 |
| 5749957 | Effect powder coatings | Afred Hennemann, Otto Stahlecker | 1998-05-12 |
| 5618342 | Pigment preparation | Gerhard Herget, Otto Stahlecker | 1997-04-08 |
| 5520956 | Coatings | Alfred Hennemann | 1996-05-28 |
| 5320781 | Conductive pigment | Otto Stahlecker, Manfred Thon, Ralf Glausch, Gerhard Pfaff, Wilhelm Gobel | 1994-06-14 |
| 5223360 | Materials coated with plate-like pigments | Constanze Prengel, Klaus-Dieter Franz, Hartmut Hartner, Axel von Daacke, Klaus Bernhardt | 1993-06-29 |
| 5221341 | Surface-modified platelet-like pigments | Klaus-Dieter Franz, Johann Dietz | 1993-06-22 |
| 4986853 | Pearlescent pigment preparations | — | 1991-01-22 |
| 4814020 | Readily dispersible nacreous pigment preparation | Otto Stahlecker | 1989-03-21 |
| 4721734 | Photosensitive hydroxylalkylphenones | Juergen Gehlhaus | 1988-01-26 |
| 4544415 | Weathering-resistant pearlescent pigments | Klaus-Dieter Franz, Otto Stahlecker | 1985-10-01 |
| 4540730 | Process for incorporating pigments into thermoplastics, and adhesion promoters for use in this process | — | 1985-09-10 |
| 4482389 | Nacreous pigments | Klaus-Dieter Franz, Klaus Ambrosius, Reiner Esselborn | 1984-11-13 |
| 4477681 | Photosensitive hydroxyalkylphenones | Juergen Gehlhaus | 1984-10-16 |
| 4347111 | Photosensitive hydroxyalkylphenones | Jurgen Gehlhaus | 1982-08-31 |
| 4205997 | Powdery pearlescent pigment compositions | Reiner Hesse, Hans Pratzer, Gerhard Edler | 1980-06-03 |