Issued Patents All Time
Showing 1–25 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7008900 | Double metal cyanide catalysts for producing polyether polyols | Jörg Hofmann, Pieter Ooms, Pramod Gupta, John Lohrenz | 2006-03-07 |
| 6953765 | Double metal cyanide catalysts for preparing polyether polyols | Pieter Ooms, Jörg Hofmann | 2005-10-11 |
| 6878661 | Bimetallic-cyanide catalysts used for preparing polyether polyols | Pieter Ooms, Jörg Hofmann, Pramod Gupta | 2005-04-12 |
| 6852663 | Double-metal cyanide catalysts for preparing polyether polyols | Pieter Ooms, Joerg Hofmann | 2005-02-08 |
| 6833431 | Double-metal cyanide catalysts for preparing polyether polyols | Jörg Hofmann, Pieter Ooms | 2004-12-21 |
| 6818587 | Double-metal cyanide catalysts for preparing polyether polyols | Jörg Hofmann, Pieter Ooms | 2004-11-16 |
| 6806345 | Aliphatic polycarbonate homo-and co-polymers produced by DMC catalysis and the process for their production | Jörg Hofmann, Christian Steinlein | 2004-10-19 |
| 6646100 | Aliphatic polycarbonate homo-and co-polymers produced by DMC catalysis and the process for their production | Jörg Hofmann, Christian Steinlein | 2003-11-11 |
| 6624286 | Double-metal cyanide catalysts containing polyester for preparing polyether polyols | Jörg Hofmann, Pramod Gupta, Robert J. Kumpf, Pieter Ooms | 2003-09-23 |
| 6586566 | Double metal cyanide catalysts for producing polyether polyols | Jörg Hofmann, Pieter Ooms, Pramod Gupta, John Lohrenz | 2003-07-01 |
| 6586564 | Double-metal cyanide catalysts for preparing polyether polyols | Jörg Hofmann, Pieter Ooms | 2003-07-01 |
| 6569981 | Crystallizing polyether polyols, a method for producing them and use of the same | Jörg Hofmann, Pramod Gupta, Pieter Ooms | 2003-05-27 |
| 6458918 | Method for producing partially crystalline polyether polyols | Jörg Hofmann, Pramod Gupta, Hanns P. Muller, Harald Pielartzik | 2002-10-01 |
| 6391820 | Bi-metallic-cyanide catalysts used for preparing polyether polyols | Pieter Ooms, Jörg Hofmann, Pramod Gupta | 2002-05-21 |
| 6379751 | Imparting water-repellency with polysiloxanes containing carboxyl groups | Gunter Sackmann, Jurgen Reiners, Tillmann Hassel, Manfred Schnee, Fritz Novotny | 2002-04-30 |
| 6323375 | Crystalline double metal cyanide catalysts for producing polyether polyols | Jörg Hofmann, Pramod Gupta, Robert J. Kumpf, Pieter Ooms, Michael Schneider | 2001-11-27 |
| 6291388 | Double metal cyanide catalysts for producing polyether polyols | Jörg Hofmann, Pieter Ooms, Pramod Gupta | 2001-09-18 |
| 5998327 | Zinc/metal hexacyanocobaltate complex compounds, a process for their preparation, and their use in a process for the production of polyether polyols | Jörg Hofmann, Pramod Gupta, Harald Pielartzik, Pieter Ooms | 1999-12-07 |
| 5959060 | Polyisocyanate-modified polycarboxylic acids and their use as crosslinking agents for epoxy resins | Knud Reuter, Hanns P. Muller, Hans-Ulrich Meier-Westhues, Ulrich Freudenberg, Lothar Kahl | 1999-09-28 |
| 5786419 | Powder coating composition and its use for the preparation of matte coatings | Hans-Ulrich Meier-Westhues, Wolfgang Schultz, Hans-Josef Laas, Hans-Peter Klee | 1998-07-28 |
| 5534601 | Polyisocyanate-modified dicarboxylic (poly) anhydrides | Knud Reuter, Hanns P. Muller, Hans-Ulrich Meier-Westhues, Lothar Kahl, Manfred Bock | 1996-07-09 |
| 5312962 | Process for the production of compounds containing aldimine or ketimine groups and the compounds obtained by this process | Hanns P. Muller | 1994-05-17 |
| 5310719 | Dye acceptor element for thermosublimation printing | Rolf Wehrmann, Geert Defieuw, Emil Verdonck, Herman Uytterhoeven, Rolf Dheim | 1994-05-10 |
| 5292807 | Compositions of cyclic isourea component with carboxyl component | Hanns P. Muller, Hans-Joachim Kreuder, Manfred Bock, Knud Reuter | 1994-03-08 |
| 5254124 | Epilation head for motor-powered epilating appliances | Hans-Eberhard Heintke, Gebhard Braun | 1993-10-19 |