Assignee
PATELHOLD PATENTVERWERTUNG
19 granted patents·572 citations·filing 1974–1981
Top patents by PatentIndex Score
19 records- 0195US3970790AMethod and device for the coded transmission of messagesPATELHOLD PATENTVERWERTUNG·Filed 1974·Granted Jul 20, 1976·140 cites·41 claims
- 0292US4173390AFiber optic T-couplerPATELHOLD PATENTVERWERTUNG·Filed 1977·Granted Nov 6, 1979·88 cites·20 claims
- 0388US4027153AFibre network having a passive optical coupling element for optoelectronic transmission of data between addressable subscriber stationsPATELHOLD PATENTVERWERTUNG·Filed 1974·Granted May 31, 1977·44 cites·16 claims
- 0485US3973226AFilter for electromagnetic wavesPATELHOLD PATENTVERWERTUNG·Filed 1974·Granted Aug 3, 1976·33 cites·36 claims
- 0581US3978288AMethod and apparatus for the secret transmission of speech signalsPATELHOLD PATENTVERWERTUNG·Filed 1974·Granted Aug 31, 1976·40 cites·16 claims
- 0679US4112293AOptical fiber data transmission systemPATELHOLD PATENTVERWERTUNG·Filed 1977·Granted Sep 5, 1978·37 cites·11 claims
- 0778US4511958ACommon bus access system using plural configuration tables for failure tolerant token passing among processorsPATELHOLD PATENTVERWERTUNG·Filed 1981·Granted Apr 16, 1985·55 cites·23 claims
- 0875US4043047AProcess and apparatus for the treatment of water-containing substances and application of this method for the preparation of pasteurized dried sludgePATELHOLD PATENTVERWERTUNG·Filed 1976·Granted Aug 23, 1977·40 cites·14 claims
- 0974US4318064AResonator for high frequency electromagnetic oscillationsPATELHOLD PATENTVERWERTUNG·Filed 1978·Granted Mar 2, 1982·19 cites·22 claims
- 1070US4209758AMethod and apparatus for the automatic matching of a transmitter to an antennaPATELHOLD PATENTVERWERTUNG·Filed 1978·Granted Jun 24, 1980·17 cites·2 claims
- 1162US4071707AProcess and apparatus for improving the utilization of transmisson channels through thinning out sections of the signal bandPATELHOLD PATENTVERWERTUNG·Filed 1976·Granted Jan 31, 1978·18 cites·15 claims
- 1253US4369409ALow-frequency power amplifierPATELHOLD PATENTVERWERTUNG·Filed 1980·Granted Jan 18, 1983·9 cites·33 claims
- 1349US4125817AMethod for stabilizing the mean-frequency and modulation slope of a phase-keyed oscillatorPATELHOLD PATENTVERWERTUNG·Filed 1977·Granted Nov 14, 1978·8 cites·46 claims
- 1438US4137505AMethod of and apparatus for frequency controlPATELHOLD PATENTVERWERTUNG·Filed 1976·Granted Jan 30, 1979·6 cites·34 claims
- 1536US4213007AMethod and apparatus for monitoring a pulse-code modulated data transmissionPATELHOLD PATENTVERWERTUNG·Filed 1978·Granted Jul 15, 1980·6 cites·6 claims
- 1635US4160123AMethods of and apparatus for the encoded transmission of informationPATELHOLD PATENTVERWERTUNG·Filed 1976·Granted Jul 3, 1979·5 cites·54 claims
- 1727US4344169AMethod of connecting two short-wave transmitters in parallelPATELHOLD PATENTVERWERTUNG·Filed 1980·Granted Aug 10, 1982·2 cites·14 claims
- 1827US4257122AApparatus for improving the efficiency of the modulation stage of a transmitterPATELHOLD PATENTVERWERTUNG·Filed 1978·Granted Mar 17, 1981·0 cites·8 claims
- 1926US4112476AGround fault protection systemPATELHOLD PATENTVERWERTUNG·Filed 1977·Granted Sep 5, 1978·5 cites·7 claims
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