Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5871845 | Electret fibers having improved charge stability, process for the production thereof and textile material containing these electret fibers. | Jorg Dahringer, Werner Groh, Hans-Tobias Macholdt | 1999-02-16 |
| 5153062 | Process and device for producing laminated safety glass and laminated safety glass produced thereby | Gerhard Grolig, Manfred Kuechler, Guenter Reinhard | 1992-10-06 |
| 4952258 | Process for producing laminated safety glass | Gerhard Grolig, Manfred Kuechler, Guenter Reinhard | 1990-08-28 |