GP

Gerhard Pfaff

Merck: 57 patents #81 of 9,382Top 1%
SA Siemens Aktiengesellschaft: 3 patents #4,667 of 22,248Top 25%
WG Werner & Pfleiderer Gmbh: 2 patents #21 of 114Top 20%
📍 Munster, DE: #1 of 649 inventorsTop 1%
Overall (All Time): #36,686 of 4,157,543Top 1%
62
Patents All Time

Issued Patents All Time

Showing 26–50 of 62 patents

Patent #TitleCo-InventorsDate
6602340 Transparent medium with angular-selective transmitting or reflecting properties Christina Schank, Alexandra BROWNFIELD, Joachim Weitzel, Wolfgang Hechler 2003-08-05
6596070 Interference pigments Christoph Schmidt, Christina Schank, Sabine Schoen 2003-07-22
6552102 Pigment flakes Eike Poetsch, Matthias Kuntz, Stephan Derow, David Coates 2003-04-22
6517628 Pigment mixture Ralf Anselmann, Sabine Schoen 2003-02-11
6500251 Multi-coated interference pigments Stephanie Andes, Gerd Bauer, Gunter Brenner, Dieter Bruckner, Michael Schmelz +3 more 2002-12-31
6456897 Control method and numerical control for motion control of industrial machine tools Wolfgang Papiernik, Martin Teckentrup 2002-09-24
6419736 Sulfide and oxysulphide pigments Matthias Kuntz, Reiner Vogt, Rodney Riddle, Sabine Schoen, Wolf-Dietrich Weber 2002-07-16
6376577 Laser-markable plastics Helge Kniess, Dieter Heinz, Reiner Delp, Matthias Kuntz 2002-04-23
6372036 Pigment preparation and its use especially in printing inks Sabine Schoen, Norio Takahashi 2002-04-16
6348259 Modified electrode material and its use Volker Hilarius, Ralf Glausch, Dietmar Rahner, Waldfried Plieth, Matthias Kloss 2002-02-19
6337160 Manganese dioxide electrodes, process for producing the same and their use Volker Hilarius, Ralf Glausch, Dietmar Rahner, Waldfried Plieth, Matthias Kloss 2002-01-08
6334893 Pigment mixture Sabine Schoen, Kaiman Shimizu 2002-01-01
6294010 Pigment mixture Sabine Schoen, Kaiman Shimizu 2001-09-25
6291065 Pigment flakes Eike Poetsch, Matthias Kuntz, Stephan Derow, David Coates 2001-09-18
6291551 Laser-markable plastics Helge Kniess, Dieter Heinz, Reiner Delp, Matthias Kuntz 2001-09-18
6284032 Multilayer interference pigments Stephanie Andes, Gerd Bauer, Gunter Brenner, Dieter Bruckner, Michael Schmelz +3 more 2001-09-04
6280520 Multilayer pearl luster pigment based on an opaque substrate Stephanie Andes, Dieter Bruckner, Gerald Fuchs-Pohl, Matthias Kuntz, Reiner Vogt 2001-08-28
6267810 Pigment mixture Sabine Schoen, Nishimagi Atsuko 2001-07-31
6238472 Metal oxide coated titanium dioxide lamellas Stephanie Andes, Gerd Bauer, Gunter Brenner, Dieter Bruckner, Michael Schmelz +3 more 2001-05-29
6156115 Multilayer interference pigment with transparent central layer Gerd Bauer, Martin Friz, Matthias Kuntz, Christina Schank 2000-12-05
6132504 Multilayer interference pigment with absorbent central layer Matthias Kuntz, Gerd Bauer, Christina Schank 2000-10-17
5985020 Plate-like titanium dioxide reduction pigment Stefanie Andes, Sabine Hock, Gunter Brenner, Dieter Bruckner, Andrea Heyland +3 more 1999-11-16
5972098 Titanate-containing pearlescent pigments Stefanie Andes, Sabine Hock, Gunter Brenner, Dieter Bruckner, Andrea Heyland +3 more 1999-10-26
5945035 Conductive pigments Reiner Vogt 1999-08-31
5858078 Platelet-shaped titanium dioxide pigment Stefanie Andes, Gerd Bauer, Gunter Brenner, Dieter Bruckner, Andrea Heyland +3 more 1999-01-12