Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8486157 | Process for the phase transformation of substances | Aymee Lisette Michel De Arevalo, Patrik Stenner, Stefan Fiedler, Manfred Nagel | 2013-07-16 |
| 7897256 | Surface-modified, doped, pyrogenically produced oxides | Helmut Mangold, Jurgen Meyer | 2011-03-01 |
| 7534409 | Pyrogenic silicon dioxide powder and dispersion thereof | Kai Schumacher | 2009-05-19 |
| 7491375 | Pyrogenically produced silicon dioxide powder | Kai Schumacher, Roland Schilling, Juergen Flesch, Thomas Schiener | 2009-02-17 |
| 7439298 | Pyrogenically produced silicon dioxide powder and silicone sealing compound containing this powder | Kai Schumacher, Uwe Diener, Mario Scholz | 2008-10-21 |
| 6809149 | Functionalized silicas | Jurgen Meyer, Manfred Ettlinger, Stephanie Frahn | 2004-10-26 |
| 6663851 | Surface-modified titanium dioxide | Klaus Deller, Juergen Meyer | 2003-12-16 |
| 6524548 | Zirconium dioxide powder, method of its production and use | Helmut Mangold, Werner Hartmann, Peter Kleinschmit | 2003-02-25 |
| 6455455 | Silicon-aluminum mixed oxide | Klaus Deller, Rainer Golchert, Helmut Mangold | 2002-09-24 |
| 6413490 | Granules based on pyrogenic titanium dioxide and a process for preparing the granules | Hilmar Gilges, Jurgen Meyer | 2002-07-02 |
| 6406532 | Titanium dioxide powder which contains iron oxide | Werner Hartmann | 2002-06-18 |
| 6303256 | Toners and/or toner mixtures | Helmut Mangold, Juergen Meyer | 2001-10-16 |
| 6242373 | Boron oxide-silicon dioxide mixed oxide | Helmut Mangold, Manfred Ettlinger, Peter Kleinschmit | 2001-06-05 |
| 6197469 | Toners and/or toner mixtures | Helmut Mangold, Juergen Meyer | 2001-03-06 |
| 6083859 | Boron oxide-silicon dioxide mixed oxide | Helmut Mangold, Manfred Ettlinger, Peter Kleinschmit | 2000-07-04 |
| 6022404 | Surface-modified, pyrogenically produced mixed oxides, method of their production and use | Manfred Ettlinger, Werner Hartmann, Jurgen Meyer | 2000-02-08 |
| 5976480 | Pyrogenic silica, process for the production thereof and use | Helmut Mangold, Peter Kleinschmit | 1999-11-02 |
| 5776240 | Granules based on pyrogenically prepared silicon dioxide, methods for their preparation and use thereof | Klaus Deller, Helmfried Krause, Juergen Meyer, Hans Lansink-Rotgerink, Werner Hartmann | 1998-07-07 |
| 5762914 | Flame-hydrolytically produced titanium dioxide mixed oxide, method of its production and its use | Werner Hartmann, Helmut Mangold | 1998-06-09 |
| 5711797 | Silanized silicic acids | Manfred Ettlinger, Jurgen Meyer | 1998-01-27 |
| 5672330 | Flame-hydrolytically produced titanium dioxide mixed oxide method of its production and its use | Werner Hartmann, Helmut Mangold | 1997-09-30 |
| 5665156 | Silanized silicon acids | Manfred Ettlinger, Jurgen Meyer | 1997-09-09 |
| 5501933 | Toner containing pigment and surface modified pyrogenically produced aluminum oxide | Hans Deusser, Ju/ rgen Meyer, Gu/ nther Michael, Andreas Stubbe | 1996-03-26 |
| 5451390 | Flame-hydrolytically produced titanium dioxide mixed oxide, method of its production and its use | Werner Hartmann, Helmut Mangold | 1995-09-19 |
| 5424258 | Silicon-aluminum mixed oxide | Helmut Mangold, Werner Hartmann, Peter Kleinschmit, Thomas Rudolph | 1995-06-13 |