Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6908885 | Gel comprised of a poly-α-1,4-glucan and starch | Holger Bengs, Rolf Muller | 2005-06-21 |
| 6790495 | Method for manufacturing a shape body containing a starch, a homogenised mass containing starch and a device for manufacturing a soft capsule | Dieter Engel, Erich Brocker, Rico Menard | 2004-09-14 |
| 6299246 | Plastic molded part and construction structure | — | 2001-10-09 |
| 6242102 | Single or multilayer foil having a layer containing thermoplastically processable starch | — | 2001-06-05 |
| 6214907 | Biologically degradable polymer mixture | — | 2001-04-10 |
| 6117925 | Thermoplastic processable starch or starch derivative polymer mixtures | — | 2000-09-12 |
| 5844023 | Biologically degradable polymer mixture | — | 1998-12-01 |
| 5773495 | Use of plasticisers for thermo-plasticizing starch | Heinz Haschke | 1998-06-30 |
| 5705536 | Foamed starch polymer | — | 1998-01-06 |
| 5663216 | Reinforced biodegradable polymer | — | 1997-09-02 |
| 5427614 | Starch based formulations | Fritz Wittwer | 1995-06-27 |
| 5415827 | Process for improving the mechanical properties of single-or multi-ply sheets | Joachim Meissner, Rico Menard | 1995-05-16 |
| 5405564 | Method of forming shaped articles made from pre-processed starch | Robert F. T. Stepto, Markus Thoma | 1995-04-11 |
| 5382611 | Destructurized starch and method for making same | Robert F. T. Stepto, Beat Dobler, Keith Pyrah | 1995-01-17 |
| 5362777 | Thermoplastically processable starch and a method of making it | — | 1994-11-08 |
| 5314934 | Polymer mixture for producing films | — | 1994-05-24 |
| 5280055 | Biodegradable mould material | — | 1994-01-18 |
| RE33251 | Apparatus and method of sealing capsules | Fritz Wittwer | 1990-07-03 |
| 4790881 | Molded hydrophilic polymer | Fritz Wittwer | 1988-12-13 |
| 4738817 | Method for forming pharmaceutical capsules from hydrophilic polymers | Fritz Wittwer, Hans U. Bodenmann, Thomas Raible, Louis S. Gillow | 1988-04-19 |
| 4738724 | Method for forming pharmaceutical capsules from starch compositions | Fritz Wittwer, Hans U. Bodenmann, Thomas Raible, Louis S. Gillow | 1988-04-19 |
| 4673438 | Polymer composition for injection molding | Fritz Wittwer | 1987-06-16 |
| 4655840 | Hydrophilic polymer compositions for injection molding | Fritz Wittwer | 1987-04-07 |
| 4591475 | Method for molding capsules | Fritz Wittwer | 1986-05-27 |
| 4539060 | Apparatus and method of sealing capsules | Fritz Wittwer | 1985-09-03 |