Andreas Weirich
7Patents
5h-index
12Co-inventors
60Inventor score
Filing activity: Nov 28, 1983 → Jun 12, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6295343A | Method and apparatus for combining voice line card and xDSL line card functions | Electricity | 31 | Expired |
| US4592070A | ADPCM encoder/decoder with improved tracking | Electricity | 25 | Expired |
| US4549304A | ADPCM Encoder/decoder with signalling bit insertion | Electricity | 13 | Expired |
| US4542516A | ADPCM Encoder/decoder with zero code suppression | Electricity | 9 | Expired |
| US7010026B1 | Enhanced line card and packetizing CPE for lifeline packet voice telephone | Electricity | 6 | Expired |
| US6873623B2 | System and method for overlaying DSL access multiplexer onto existing access systems | Electricity | 3 | Expired |
| US10873173B1 | Reducing back reflection in hybrid lasers | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.