Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5369177 | UV-stabilized polyoxymethylene molding materials | Sabine Kielhorn-Bayer, Hartmut Zeiner, Heiner Goerrissen | 1994-11-29 |
| 4780498 | Molding materials of polyoxymethylene homopolymers and/or copolymers and thermoplastic polyurethane elastomers having improved heat stability, their preparation and their use | Heiner Goerrissen, Wilhelm Schuette, Manfred Walter | 1988-10-25 |
| 4576902 | Process of making and using a positive working photosensitive film resist material | Helmut Barzynski | 1986-03-18 |
| 4565771 | Production of gravure printing plates having plastic printing layers | John Lynch, Reinhold J. Leyrer | 1986-01-21 |
| 4465760 | Production of relief images or resist images by a negative-working method | Reinhold J. Leyrer, Uwe Klinsmann | 1984-08-14 |
| 4456679 | Production of relief images or resist images by a positive-working method | Reinhold J. Leyrer | 1984-06-26 |
| 4239609 | Photopolymerizable coating and recording materials containing a photoinitiator and an organic halogen compound | Helmut Barzynski | 1980-12-16 |