Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6181861 | Arrangement for branching a telecommunications cable containing several stranded elements with optical fibers | Wolfgang Wenski, Wolfgang Teschner, Franz Grajewski, Hans-Holger Freckmann, Zbigniew Wielgolaski | 2001-01-30 |
| 5956230 | Device for housing the active and passive nodal point modules of telecommunication installations | Franz Grajewski | 1999-09-21 |
| 5956450 | Device for storing a number of cassettes | Hans-Holger Freckmann, Zbigniew Wielgolaski, Franz Grajewski | 1999-09-21 |
| 5753863 | Sealing arrangement having an outer housing and an inner hyperbolic tube for sealing the inlet area of a lengthwise extending sustrate | Franz Grajewski | 1998-05-19 |
| 5733614 | Arrangement for tightly enclosing a substrate | — | 1998-03-31 |
| 5727100 | Device for connecting two electric aerial cables | Franz Grajewski, Zbigniew Wielgolaski, Ulrich Jansen, Rudolf Buchwadd | 1998-03-10 |
| 5722204 | Device for housing the active and passive junction assemblies of telecommunications installations | Franz Grajewski | 1998-03-03 |
| 5653559 | Underground housing for telecommunication device | Wolfgang Wenski, Hans-Holger Freckmann, Zbigniew Wielgolaski, Gunter Kochsmeier, Eberhard Gerwald +2 more | 1997-08-05 |
| 5517592 | Sleeve for branch or joint areas in optical or electrical cables | Franz Grajewski, Hans-Holger Freckmann, Zbigniew Wielgolaski, Reinhard Schottker | 1996-05-14 |
| 5311613 | Attenuator for integration into optical transmission systems and methods for fabrication and use thereof | Johann Schulte | 1994-05-10 |