Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6838518 | Extrudable polycarbonate molding compositions | Andreas Seidel, Thomas Eckel, Dieter Wittmann | 2005-01-04 |
| 5612398 | Radiation-resistant polycarbonates | Gerhard Fennhoff, Ralf Hufen, Wolfgang Ebert | 1997-03-18 |
| 5464893 | Radiation-resistant polycarbonates | Rick L. Archey, Charles E. Lundy, Aaron D. Meltzer, Harald Pielartzik, Gerhard Fennhoff +3 more | 1995-11-07 |
| 5382605 | Polycondensates which can be sterilized by .gamma.-radiation | Douglas G. Powell, Charles E. Lundy, Gerhard Fennhoff, Ralf Hufen | 1995-01-17 |
| 5376715 | Heat stabilization or aromatic polycarbonates | Gerhard Fennhoff, Jurgen Kirsch, Karsten-Josef Idel, Charles E. Lundy | 1994-12-27 |
| 5356965 | Flame-resistant polycarbonate molding compositions | Richard Weider, Thomas Scholl, Klaus Horn | 1994-10-18 |
| 5308558 | Process for foaming thermoplastic polycarbonates | Edwin Woldenberg, Klaus Horn, Johann Piontek, Burkhard Kohler, Wolfgang Ebert | 1994-05-03 |
| 5234982 | Ternary mixtures | Helmut-Martin Meier, Klaus Horn, Helmut Pilzecker | 1993-08-10 |
| 5202374 | Ternary mixtures | Klaus Horn | 1993-04-13 |
| 5158985 | Polycarbonate foam articles | Burkhard Kohler, Klaus Horn, Wolfgang Ebert, Johann Piontek | 1992-10-27 |
| 5132331 | Polycarbonate foams | Burkhart Kohler, Ulrich Grigo, Klaus Horn, Wolfgang Ebert, Charles E. Lundy | 1992-07-21 |
| 5036151 | Mold releasel agents for poly(ester) carbonates | Holger Ohst, Helmut-Martin Meier | 1991-07-30 |
| 5004569 | Process for the production of carboxylic acid esters | Helmut-Martin Meier, Klaus Berg | 1991-04-02 |
| 4797435 | Use of 3-benzalphthalides as UV stabilizers for thermoplastic, aromatic polyesters, polycarbonates and polyester carbonates | Thomas Scholl, Volker Serini, Dietrich Rathmann, Ross Savage | 1989-01-10 |
| 4776981 | Flameproofing agents, their preparation and their use for providing polycarbonates with a flame-resistant finish | Hans-Jurgen Kress | 1988-10-11 |
| 4774273 | Perfluoroalkanesulphonic acid aryl esters as anti-drip agents in flame-repellant molding compositions based on thermoplastic aromaticpolycarbonates | Hans-Jurgen Kress, Ludwig Bottenbruch, Ulrich Koemm | 1988-09-27 |
| 4753994 | Flame retardant polycarbonate compositions | Russell P. Carter, Jr., Ulrich Grigo, Sivaram Krishnan, Mark W. Witman, Hans-Jurgen Kress +1 more | 1988-06-28 |
| 4728673 | Process for the foaming of thermoplastics containing ester and/or carbonate groups | Heinz Hammer | 1988-03-01 |
| 4713462 | Flameproofing agents, their preparation and their use for providing polycarbonates with a flame-resistant finish | Hans-Jurgen Kress | 1987-12-15 |
| 4661543 | Flameproofing agents, their preparation and their use for providing polycarbonates with a flame-resistant finish | Hans-Jurgen Kress | 1987-04-28 |
| 4657955 | Flameproofing agents, their preparation and their use for flameproofing polycarbonates | Hans-Jurgen Kress | 1987-04-14 |
| 4649168 | Process for the preparation of flame-resistant polycarbonate moulding compositions containing tetrafluoroethylene polymers | Hans-Jurgen Kress, Ludwig Bottenbruch, Mark W. Witman, Christian Lindner, Karl-Heinz Ott | 1987-03-10 |
| 4627949 | Process for the preparation of shaped articles of stabilized polycarbonate by the devolatilizing injection-moulding or devolatilizing extrusion process | Rolf Dhein, Helmut-Martin Meier, Hans-Jurgen Meissner, Udo Oels | 1986-12-09 |
| 4615832 | Flameproofing agents, their preparation and their use for flameproofing polycarbonates | Hans-Jurgen Kress | 1986-10-07 |
| 4594375 | Bis-(imide-sulfonate) flameproofing agents, their preparation and their use for flameproofing in polycarbonate | Sivaram Krishnan, Hans-Jurgen Kress | 1986-06-10 |