Issued Patents All Time
Showing 76–97 of 97 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5250742 | Process for the production of propargyl ethers and new propargyl ethers | Burkhard Kohler, Ralf Dujardin | 1993-10-05 |
| 5237041 | Phosphorus-containing duromers of oligophosphites | Burkhard Kohler | 1993-08-17 |
| 5223548 | Method of foaming thermoplastic polycarbonate | Ernst Grigat, Burkhard Kohler, Wolfgang Beer, Ralf Dujardin, Klaus Horn | 1993-06-29 |
| 5204930 | Optical fibers, and a process for their production | Heinz-Dieter Brandt, Udo Wolf, Wilfried Cramer | 1993-04-20 |
| 5158985 | Polycarbonate foam articles | Burkhard Kohler, Klaus Horn, Klaus Kircher, Johann Piontek | 1992-10-27 |
| 5155205 | Aromatic polycarbonate containing a special fluorine-containing bisphenol component | Michael Negele, Gerhard Fennhoff | 1992-10-13 |
| 5149856 | Process for the preparation of carbonic acid diesters containing at least one aromatic ester group | Norbert Schon, Hans-Josef Buysch | 1992-09-22 |
| 5132331 | Polycarbonate foams | Burkhart Kohler, Klaus Kircher, Ulrich Grigo, Klaus Horn, Charles E. Lundy | 1992-07-21 |
| 5123897 | Recipient or housing for a gas ultracentrifuge | Rudolf Hackenberg | 1992-06-23 |
| 5068312 | Polyarylene sulfides terminated by sulfonic acid and/or sulfonic acid derivative groups, their production and use | Ernst-Ulrich Dorf, Wolfgang Russeler, Burkhard Kohler, Walter Schmitt | 1991-11-26 |
| 4973652 | Process for the production of aromatic polycarbonates, aromatic polyester carbonates and aromatic polyesters with p containing catalyst and mixture of hydrocarbons | Rolf-Volker Meyer, Rolf Dhein, Udo Oels | 1990-11-27 |
| 4946927 | Preparation of aromatic polycarbonates, aromatic polyester carbonates and aromatic polyesters with organic phase comprising mixture of hydrocarbons | Rolf-Volker Meyer, Rolf Dhein, Udo Oels | 1990-08-07 |
| 4943623 | Process for the production of polyesters and their use as binder or binder component in powder lacquers | Rolf-Volker Meyer, Hans-Joachim Kreuder | 1990-07-24 |
| 4919514 | Optical fibres based on polycarbonate fibres, and a process for the production thereof | Wilfried Haese, Roland Vogelsgesang, Rolf Dhein | 1990-04-24 |
| 4889911 | Process for the production of fully aromatic, thermotropic polyesters and polyester carbonates | Harald Pielartzik, Rolf-Volker Meyer, Hans-Joachim Traenckner, Edgar Ostlinning | 1989-12-26 |
| 4874816 | Vinyl copolymers with grafted-on polycarbonate chains, their production and use | Ralf Dujardin, Rolf-Volker Meyer, Klaus Berg, Ulrich Grigo, Wolfgang Wehnert | 1989-10-17 |
| 4873376 | Process for the production of monomeric alkenylphenols from dihydroxydiphenylalkanes | Ralf Dujardin | 1989-10-10 |
| 4837301 | Process for the preparation of high molecular weight optionally branched polyarylenesulphides | Volker Glock, Rolf-Volker Meyer | 1989-06-06 |
| 4760127 | Process for the preparation of polyarylene sulphide with monohalogeno aromatic compound and mono mercapto compound | Karsten-Josef Idel | 1988-07-26 |
| 4760128 | Process for the preparation of high molecular weight, optionally branched polyarylene sulphide with monomercaptan compound | Karsten-Josef Idel, Rudiger Schubart | 1988-07-26 |
| 4585856 | Process for the preparation of polyarylene sulphides | Rolf-Volker Meyer, Karsten-Josef Idel, Rudiger Schubart | 1986-04-29 |
| 4535149 | Process for the production of polyarylene sulphides | Rolf-Volker Meyer, Karsten-Josef Idel, Rolf Dhein | 1985-08-13 |