Issued Patents All Time
Showing 26–50 of 106 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8399547 | Polymer composition with heat-absorbing properties and high stability | Alexander Meyer, Anke Boumans, Michael Erkelenz | 2013-03-19 |
| 8329852 | Copolycarbonates having improved surface hardness | Helmut-Werner Heuer, Alexander Karbach | 2012-12-11 |
| 8202961 | Alkylphenol for adjusting the molecular weight, and polycarbonate compositions having improved properties | Helmut-Werner Heuer, Bert Ruytinx | 2012-06-19 |
| 8163822 | Polycarbonate composition with improved melt-flowability | Stephan Konrad, Helmut-Werner Heuer, Karl-Heinz Köhler, Marc Buts | 2012-04-24 |
| 8158745 | Polycarbonates having rearrangement structures, cyclic and linear oligomers and also flow behavior | Helmut-Werner Heuer | 2012-04-17 |
| 8110649 | Polycarbonates comprising cyclic oligomers and having an improved flow behavior | Helmut-Werner Heuer | 2012-02-07 |
| 7968671 | Alkylphenol-terminated copolycarbonates, processes for preparing the same, molding compositions containing the same, and articles prepared therefrom | Helmut-Werner Heuer | 2011-06-28 |
| 7923475 | Electroluminescent arrangements | Friedrich Jonas, Andreas Elschner, Klaus Wussow | 2011-04-12 |
| 7691477 | Polyformals as a coextrusion protective layer on polycarbonate | Helmut-Werner Heuer, Sylvia Braun, Claus Rüdiger, Marco Roelofs, Wolfgang Nising +4 more | 2010-04-06 |
| 7425358 | Copolycarbonates having improved flowability | Helmut-Werner Heuer, Michael Erkelenz, Alexander Meyer, Melanie Mothrath | 2008-09-16 |
| 7399820 | Cyclic oligoformals in polycarbonate | Helmut-Werner Heuer | 2008-07-15 |
| 7358326 | Multifunctional 3,4-alkylenedioxythiophene derivatives and electrically conductive polymers containing them | Helmut-Werner Heuer | 2008-04-15 |
| 7345133 | Branched polycarbonates | Helmut-Werner Heuer, Ulrich Blaschke, Michael Erkelenz | 2008-03-18 |
| 7332560 | Thermoplastic molding compositions having reduced water absorption | Helmut-Werner Heuer | 2008-02-19 |
| 7314897 | Aromatic formals as additives for lowering the water uptake of polycarbonates | Helmut-Werner Heuer, Friedrich-Karl Bruder | 2008-01-01 |
| 7208564 | Branched polyformals and copolyformals their preparation and use | Helmut-Werner Heuer, Heiner Onckels | 2007-04-24 |
| 7199208 | Polyformals and copolyformals with reduced water absorption, production and use thereof | Helmut-Werner Heuer | 2007-04-03 |
| 7183419 | 3,4-dioxythiophene derivatives | Helmut-Werner Heuer | 2007-02-27 |
| 7132497 | Aromatic dihydroxy compound useful for the preparation of (CO)polycarbonates | Helmut-Werner Heuer | 2006-11-07 |
| 6940626 | Multilayered arrangement for electro-optical device | Helmut-Werner Heuer, Alexander Karbach | 2005-09-06 |
| 6916899 | Polycarbonates, polyester carbonates and polyesters having lateral, cycloalkyl-substituted phenols | Friedrich-Karl Bruder, Helmut-Werner Heuer, Alexander Meyer | 2005-07-12 |
| 6894142 | Highly branched (co)polycarbonates having improved flowability | Helmut-Werner Heuer, Michael Erkelenz | 2005-05-17 |
| 6869697 | Electrophosphorescent arrangement comprising conductive polymers | Helmut-Werner Heuer | 2005-03-22 |
| 6825312 | Polycarbonates, polyester carbonates and polyesters with special branched terminal groups | Alexander Meyer, Melanie Moethrath, Werner Heuer Helmut, Friedrich-Karl Bruder | 2004-11-30 |
| 6784278 | Polycarbonates, polyester carbonates and polyesters having branched terminal groups | Helmut-Werner Heuer, Alexander Meyer, Harald Pielartzik, Friedrich-Karl Bruder, Jos Marie Johannes PAULUSSE | 2004-08-31 |