Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5419928 | Surface-modified pyrogenically produced aluminum oxide | Hans Deusser, Jurgen Meyer, Gunther Michael, Andreas Stubbe | 1995-05-30 |
| 5415936 | Surface-modified pyrogenically produced titanium dioxide | Hans Deusser, Jurgen Meyer, Gunther Michael, Andreas Stubbe | 1995-05-16 |
| 5384194 | Surface-modified pyrogenically produced aluminum oxide | Hans Deusser, Jurgen Meyer, Gunther Michael, Andreas Stubbe | 1995-01-24 |
| 5380687 | Silicon-aluminum mixed oxide | Helmut Mangold, Werner Hartmann, Peter Kleinschmit, Thomas Rudolph | 1995-01-10 |
| 5372905 | Surface-modified pyrogenically produced titanium dioxide | Hans Deusser, Jurgen Meyer, Gunther Michael, Andreas Stubbe | 1994-12-13 |
| 5123964 | Finely divided, precipitated silica with high structure, method of its preparation and use | Adolf Wagner, Felix Schmidt, Dietrich Bauer | 1992-06-23 |
| 5034207 | Finely, divided, precipitated silica with high structure, method of its preparation and use | Adolf Wagner, Felix Schmidt, Dietrich Bauer | 1991-07-23 |
| 4704414 | Surface modified synthetic, silicatic filler, a process for its production and its use | Peter Kleinschmit, Alan Parkhouse, Siegfried Wolff | 1987-11-03 |
| 4514231 | Natural oxidic or silicate filler modified on the surface, a process for its production | Peter Kleinschmit, Alan Parkhouse, Siegfried Wolff | 1985-04-30 |
| 4503092 | Process for the hydrophobization of pyrogenically produced silica | Hans Klebe, Detlev Koth, Josef Schmid, Manfred Schmid | 1985-03-05 |