Issued Patents All Time
Showing 51–75 of 97 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5766572 | Water-soluble carboxypolysaccharide-magnetic iron oxide complex having a small particle diameter | Masakatsu Hasegawa, Yoshio Ito, Hisato Yamada, Hideo Nagae, Nahoko Tozawa +7 more | 1998-06-16 |
| 5747586 | High-impact molding compounds based on polyisobutylene-containing polycarbonate | Burkhard Kohler, Werner Tischer, Richard Weider, Thomas Scholl, Rolf Dhein | 1998-05-05 |
| 5747589 | Process for the production of polycarbonate-polyisobutylene block cocondensates | Burkhard Kohler, Klaus Horn, Richard Weider, Thomas Scholl | 1998-05-05 |
| 5726228 | Use of carbonates as demoulding agents for thermoplastic polycarbonates | Ralf Kaufmann, Hartmut Lower, Jurgen Kadelka, Claus Wulff, Gottfried Zaby | 1998-03-10 |
| 5717027 | Block copolycarbonates with polyisobutylene-.alpha.-haloketocarboxylic acid blocks | Richard Weider, Burkhard Kohler, Thomas Scholl, Klaus Horn | 1998-02-10 |
| 5684062 | (Co)polycarbonates stabilised against .gamma.-radiation | Ralf Hufen, Rudiger Schubart, Gerhard Fennhoff | 1997-11-04 |
| 5674467 | Meso-tetraphenylporphyrin complex compounds, process for their production and pharmaceutical agents containing the latter | Franz-Karl Maier, Mary Lee-Vaupel, Heinz Gries, Jurgen Conrad | 1997-10-07 |
| 5654383 | Polyarylene sulfides reduced in viscosity by aftertreatment with disulfides | Burkhard Kohler, Klaus Kraft, Klaus Reinking, Bahman Sarabi | 1997-08-05 |
| 5635560 | Mixtures of polycarbonate, phenolically hydroxyfunctional branched dimeric fatty acid polyesters and optionally graft polymer | Burkhard Kohler, Dieter Wittmann, Horst Beicher, Werner Tischer, Klaus Horn | 1997-06-03 |
| 5633339 | Use of tertiary aliphatic monocarboxylic acids as chain terminators for the preparation of polycarbonates and of polyester carbonates | Burkhard K ohler, Klaus Horn, Walter Sch afer, J urgen Kirsch, Rolf Dhein | 1997-05-27 |
| 5627256 | Polycarbonates containing aryl phosphines | Helmut-Martin Meier, Hartmut L ower, Claus Wulff | 1997-05-06 |
| 5612398 | Radiation-resistant polycarbonates | Gerhard Fennhoff, Ralf Hufen, Klaus Kircher | 1997-03-18 |
| 5576390 | Polyisobutylenes having aspartic acid ester terminal groups | Burkhard Kohler, Klaus Horn, Richard Weider, Thomas Scholl | 1996-11-19 |
| 5554716 | Use of hydrogenated abietic acid as a chain terminator for the production of polycarbonates and polyester carbonates | Burkhard K ohler, Klaus Horn, Rolf Dhein | 1996-09-10 |
| 5548011 | Blends of polycarbonates, dimeric fatty acid polyesters and PIB rubbers, silicones or mineral oils | Burkhard Kohler, Klaus Horn, Richard Weider, Thomas Scholl | 1996-08-20 |
| 5525674 | Polycarbonates with aliphatic ketocarboxyl end groups, mixed with known aromatic polycarbonates, their preparation and their use | Burkhard Kohler, Klaus Horn, Richard Weider, Thomas Scholl, Rolf Dhein +2 more | 1996-06-11 |
| 5457000 | Dye-image receiving element for use according to thermal dye sublimation transfer | Geert Defieuw, Herman Uytterhoeven, Rolf Wehrmann | 1995-10-10 |
| 5407966 | Recyclable thermoplastic foam with a high glass transition temperature II | Wolfgang Beer, Burkhard Kohler, Jurgen Kirsch, Rolf Dhein, Klaus Horn | 1995-04-18 |
| 5357037 | Phosphorous-containing duromers of oligophosphites | Burkhard Kohler | 1994-10-18 |
| 5308558 | Process for foaming thermoplastic polycarbonates | Edwin Woldenberg, Klaus Kircher, Klaus Horn, Johann Piontek, Burkhard Kohler | 1994-05-03 |
| 5308489 | Blends of polyether copolycarbonates and high molecular weight film-forming thermoplastics | Rolf Dhein, Herbert Hugl, Holger Ohst | 1994-05-03 |
| 5308736 | Dye-donor element for use according to thermal dye sublimation transfer | Geert Defieuw, Herman Uytterhoeven, Rolf Wehrmann | 1994-05-03 |
| 5300543 | Recyclable thermoplastics foam of high glass temperature | Jurgen Kirsch, Burkhard Kohler, Wolfgang Beer, Siegfried Anders, Rolf Dhein | 1994-04-05 |
| 5288848 | Process for preparation of high molecular weight, optionally branched polyarylene sulphides | Karsten-Josef Idel, Ludwig Bottenbruch, Dieter Freitag, Rolf-Volker Meyer | 1994-02-22 |
| 5256702 | Method of foaming thermoplastic polycarbonate | Ernst Grigat, Burkhard Kohler, Wolfgang Beer, Ralf Dujardin, Klaus Horn | 1993-10-26 |