Alewelt, Wolfgang
Patent Applications and Registrations
Patent applications and USPTO patent grants for Alewelt, Wolfgang.The latest application filed is for "optical waveguide".
- Alewelt, Wolfgang - Krefeld DE
| Patent | Date |
|---|---|
| Optical waveguide App 20040120686 - Behrens, Hans-Josef ; et al. | 2004-06-24 |
| Production of polyester carbonates Grant 6,734,278 - Kratschmer , et al. May 11, 2 | 2004-05-11 |
| Working up of polymer synthesis solutions Grant 6,716,933 - Alewelt , et al. April 6, 2 | 2004-04-06 |
| Continuous process for the production of carboxylic acid diaryl esters Grant 6,680,400 - Alewelt , et al. January 20, 2 | 2004-01-20 |
| Production and use of polyester carbonates Grant 6,646,099 - Kratschmer , et al. November 11, 2 | 2003-11-11 |
| Containers made of a branched polycarbonate Grant 6,613,869 - Horn , et al. September 2, 2 | 2003-09-02 |
| Production of polyester carbonates App 20030139564 - Kratschmer, Silke ; et al. | 2003-07-24 |
| Production and use of polyester carbonates App 20030105272 - Kratschmer, Silke ; et al. | 2003-06-05 |
| Working up of polymer sysnthesis solutions App 20030023030 - Alewelt, Wolfgang ; et al. | 2003-01-30 |
| Continuous process for the production of carboxylic acid diaryl esters App 20020087021 - Alewelt, Wolfgang ; et al. | 2002-07-04 |
| Process for producing carbonic acid diaryl ester App 20020077446 - Alewelt, Wolfgang ; et al. | 2002-06-20 |
| Process for the production of polycarbonates Grant 5,384,389 - Alewelt , et al. January 24, 1 | 1995-01-24 |
| Process for the production of thermoplastic polycarbonates Grant 5,373,082 - Kauth , et al. December 13, 1 | 1994-12-13 |
| Process for the preparation of thermoplastic polycarbonates Grant 5,340,905 - Kuhling , et al. August 23, 1 | 1994-08-23 |
| Process for the preparation of polyarylene sulphides Grant 5,306,805 - Arlt , et al. April 26, 1 | 1994-04-26 |
| Continuous production of polycarbonates Grant 5,235,026 - Wulff , et al. August 10, 1 | 1993-08-10 |
| Process for the manufacture of polyarylene sulphides Grant 5,066,776 - Russeler , et al. November 19, 1 | 1991-11-19 |
| Liquid crystal polycondensates with improved heat stability, a process for their preparation and their use for the production of shaped articles, films, fibres and filaments Grant 5,030,703 - Pielartzik , et al. July 9, 1 | 1991-07-09 |
| Preparation of polyarylene sulphide in presence of amino carboxylic acid Grant 4,661,584 - Idel , et al. April 28, 1 | 1987-04-28 |
| Process for the isolation of polyarylene sulphide Grant 4,639,507 - Alewelt , et al. January 27, 1 | 1987-01-27 |
| Glass fiber-reinforced polycarbonates with improved mechanical properties containing 0.5 to 5.0% of organopolysiloxane Grant 4,147,707 - Alewelt , et al. April 3, 1 | 1979-04-03 |
| Polycarbonates and a process for their preparation Grant 4,127,561 - Alewelt , et al. November 28, 1 | 1978-11-28 |
| Thermoplastic compositions comprising aromatic polycarbonate urethanes Grant 3,978,157 - Bottenbruch , et al. August 31, 1 | 1976-08-31 |
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