Frederick Electronics Corporation
Frederick, MD, US· latest recorded location
Frederick Electronics Corporation is named on 9 US grants and 0 published applications in this corpus. Its most frequent classification is H04L (Digital communication).
- Granted patents
- 9
- Published applications
- 0
- Inventors
- 17
- Granted in 2026 so far
- 0
- Most recent grant
- 29 Nov 1983
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
By publication year.
Technology areas
Share of 9 documents
- H04LDigital communication6
- H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or2
- H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements1
- H03JTuning resonant circuits1
- H04BTransmission1
- H04JMultiplex communication1
- H05KPrinted circuits1
Recent patents
- Digital phase-locked loop circuit29 Nov 1983US 4,418,318 A
- Teletypewriter line keyer with switching current regulator19 Oct 1982US 4,355,403 A
- FSK Tone generator circuit23 Feb 1982US 4,317,209 A
- Distributed processing telex exchange29 Sep 1981US 4,292,465 A
- Circuit for handling conversation data in a distributed processing telex exchange22 Sep 1981US 4,291,196 A
No published applications.
Most cited
By later US patents
- Distributed processing telex exchange26US 4,292,465 A1981
- Circuit for handling conversation data in a distributed processing telex exchange23US 4,291,196 A1981
- Apparatus for generating telex signaling sequences in a distributed processing telex exchange20US 4,288,658 A1981
- Digital phase-locked loop circuit20US 4,418,318 A1983
- Electronic card cage interfacing assembly12US 4,272,141 A1981