Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4917944 | Multi-ply weatherable plasticizer-free sheet | Hans-Ulrich Breitscheidel, Rudolf Kautz, Werner Kuhnel, Paul Spielau, Richard Weiss | 1990-04-17 |
| 4751121 | Multi-ply self-adhesive and deep-drawable protective sheet, especially for automotive vehicles | Werner Kuhnel, Paul Spielau, Rudolf Kautz, Johan Harmsen, Henk van der Mey | 1988-06-14 |
| 4511619 | Sealing sheet of elastomeric synthetic resins with textile reinforcement on outer layer | Werner Kuhnel, Peter Putz, Paul Spielau | 1985-04-16 |
| 4447488 | Shaped article of a synthetic resin and/or natural rubber and process for the production thereof | Karl-Heinz Spiess, Richard Weiss | 1984-05-08 |
| 4435466 | Multi-layered sealing sheet of elastomeric synthetic resin | Werner Kuhnel, Peter Putz, Paul Spielau | 1984-03-06 |