Issued Patents All Time
Showing 26–50 of 101 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5162411 | Carbonates, their production and their use as flow aids | Gerhard Fennhoff, Uwe Westeppe, Werner Nouvertne, Edgar Leitz, Ulrich Grigo | 1992-11-10 |
| 5145920 | Oligomer epoxy resins based on cyclohexyldiphenol derivatives and reaction products thereof with (meth)acrylic acid and diisocyanates | Bernhard Hess, Dieter Freitag | 1992-09-08 |
| 5136013 | Process for the production of low-melting polymers containing at least one Z-configured stilbene group | Dieter Arlt, Axel Bader, Volker Eckhardt, Frank Kleiner | 1992-08-04 |
| 5132154 | Polycarbonate mixtures in optical applications | Uwe Westeppe, Gunther Weymans, Dieter Freitag | 1992-07-21 |
| 5118786 | Process for the preparation of high molecular weight, optionally branched polyarylene sulphides | Edgar Ostlinning, Ludwig Bottenbruch | 1992-06-02 |
| 5115050 | Polyamide moulding compositions containing finely divided polyarylene sulphides | Werner Nielinger, Uwe Westeppe, Dieter Freitag, Claus Wulff, Hans-Detlef Heinz | 1992-05-19 |
| 5109076 | Polydiorganosiloxane/polycarbonate block cocondensates based on certain dihydroxydiphenylcycloalkanes | Dieter Freitag, Uwe Westeppe, Alfred K. Jung, Peter Horlacher, Gunther Weymans +2 more | 1992-04-28 |
| 5105004 | Aromatic ethers | Knud Reuter, Dieter Freitag, Gunther Weymans, Rolf Dhein, Paul J. Mayska +2 more | 1992-04-14 |
| 5102971 | Soluble polyaromatic compounds | Thomas Himmler, Rudolf Braden, Joachim Genz, Ralf Pakull | 1992-04-07 |
| 5100960 | Thermoplastic molding compositions of a polysiloxane block copolycarbonate and a polycarbonate based on certain dihydroxydiphenylcycloalkanes | Ulrich Grigo, Peter Horlacher, Dieter Freitag, Uwe Westeppe, Wolfgang Beer +1 more | 1992-03-31 |
| 5084550 | Copolycarbonate from mixture of polyarylene diol | Ralf Pakull, Dieter Freitag, Volker Eckhardt, Hans R. Kricheldorf, Dierik Lubbers | 1992-01-28 |
| 5081269 | Oligomer epoxy resins based on cyclohexyldiphenol derivatives and reaction products thereof with (meth)acrylic acid and diisocyanates | Bernhard Hess, Dieter Freitag | 1992-01-14 |
| 5068302 | Polysiloxane-polycarbonate block copolymers based on certain dihydroxydiphenylcycloalkanes | Peter Horlacher, Volker Serini, Dieter Freitag, Ulrich Grigo, Uwe Westeppe | 1991-11-26 |
| 5066776 | Process for the manufacture of polyarylene sulphides | Wolfgang Russeler, Ernst-Ulrich Dorf, Wolfgang Alewelt, Dieter Freitag | 1991-11-19 |
| 5053477 | Process for the production of aromatic polyether ketones | Sabine Kern, Joachim Genz, Frank Kleiner, Volker Eckhardt | 1991-10-01 |
| 5037939 | Thermotropic, fully aromatic polyesters prepared by polycondensation of aromatic diphenols and aromatic carboxylic acids | Volker Eckhardt, Dieter Freitag | 1991-08-06 |
| 5034458 | Polycarbonates of substituted cyclohexylindenebisphenols | Volker Serini, Dieter Freitag, Ulrich Grigo | 1991-07-23 |
| 5034457 | Thermoplastic blends containing polycarbonates based on substituted cyclohexylidenebisphenols | Volker Serini, Dieter Freitag, Ulrich Grigo | 1991-07-23 |
| 5026758 | Thermoplastic molding compounds of polycarbonate, polyalkylene terephthalate, special barium sulfate and optionally, elastomers | Ulrich Grigo, Jurgen Kirsch, Dieter Wittmann, Peter Horlacher | 1991-06-25 |
| 5025065 | Fire-retardant polycarbonates and polyesters | Peter Tacke, Ulrich Grigo, Werner Nouvertne, Dieter Freitag, Uwe Westeppe | 1991-06-18 |
| 5021543 | Process for the production of bifunctional OH-terminated polyphenylene oxides with dipolar aprotic solvent | Paul J. Mayska, Volker Eckhardt, Dieter Freitag | 1991-06-04 |
| 5021542 | Polycarbonate of polysubstituted cyclohexylidene bisphenols | Volker Serini, Dieter Freitag, Uwe Westeppe, Ulrich Grigo, Klaus-Christian Paetz | 1991-06-04 |
| 5010163 | Polycarbonate of cycloalkylidene bisphenol | Volker Serini, Dieter Freitag, Uwe Westeppe, Ulrich Grigo, Carl Casser +2 more | 1991-04-23 |
| 5010162 | Polycarbonate of alkyl cyclohexylidene bisphenol | Volker Serini, Dieter Freitag, Uwe Westeppe, Ulrich Grigo, Carl Casser +2 more | 1991-04-23 |
| 5010147 | High-strength polycarbonate mixtures | Uwe Westeppe, Gunther Weymans, Ulrich Grigo, Dieter Freitag | 1991-04-23 |