Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8003199 | Noise prevention plate consisting of acrylic glass | Egbert Schoela, Gerd Hampl, Peter Seelmann, Mojmir Ruzicka | 2011-08-23 |
| 6726970 | Self-reinforced moldable poly(meth)acrylate sheet | Egbert Schoela, Robert Schwenninger | 2004-04-27 |
| 6699544 | Self-reinforced shaped article | Egbert Schoela, Robert Schwenninger | 2004-03-02 |
| 6641903 | Transparent plastic pane of acrylic glass, process for making the same and use of the same | Egbert Schoela, Mojmir Ruzicka | 2003-11-04 |
| 6412597 | Plate suitable as a noise protection wall | Egbert Schola, Peter Seelmann | 2002-07-02 |
| 5428316 | Power amplifier with quiescent current control | — | 1995-06-27 |
| 5054062 | Circuit for maintaining hybrid cancellation of signals in a communication system | — | 1991-10-01 |
| 5046188 | Data interface for telephone system | — | 1991-09-03 |
| 4887293 | Trunk circuit with loop length gain equalization | — | 1989-12-12 |
| 4792970 | Expansion port for use in a communication system | — | 1988-12-20 |
| 4736406 | Expansion subsystem for use in a communication system | — | 1988-04-05 |
| 4727578 | Telephone system | — | 1988-02-23 |
| 4726054 | System for interconnecting a pair of communication systems | — | 1988-02-16 |
| 4701948 | Communication system having separate unidirectional information signalling | — | 1987-10-20 |