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PATELHOLD PATENTVERWERTUNG

Overview
  • Total Patents
    1,448
About

PATELHOLD PATENTVERWERTUNG has a total of 1,448 patent applications. Its first patent ever was published in 1938. It filed its patents most often in Switzerland, France and Germany. Its main competitors in its focus markets telecommunications, electrical machinery and energy and basic communication technologies are RADIO ELECTR SOC FR, PATENTVERWERTUNGS & ELEKTRO HO and IAPATELHOLDIA PATENTVERWERTUNG.

Patent filings per year

Chart showing PATELHOLD PATENTVERWERTUNGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Patentverwertungs-Elektro-Hold 257
#2 Guanella Gustav Dipl-Ing 33
#3 Guanella Gustav 28
#4 Guanella Gustav Dipl Ing 24
#5 Kaech Alfred 24
#6 Guanella G 22
#7 Alfred Kaech 16
#8 Kach Alfred 15
#9 Paul Mueller 14
#10 Guanella Dipl-Ing Gustav 12

Latest patents

Publication Filing date Title
AU1146100A Steam power plant
EP1092691A1 Method of producing cement clinker from a cement raw mix and clean gas from coal
EP1092692A1 Method of producing cement clinker and electricity
EP0976807A1 Method and plant for producing a clean gas from a hydrocarbon
EP0044845A1 Process and device for protecting the transmission of vocal signals.
CH664655A5 Method and amplifier circuit for the amplification of electrical signals, in particular lf modulation signals of a broadcasting transmitter.
US4369409A Low-frequency power amplifier
EP0028273A1 Method and device for generating secret keys
EP0028272A1 Method and device for the transmission of enciphered information
CH633637A5 Method for measuring the speed of a moving object.
CH642497A5 Method and circuit arrangement for linearisation of the transmission curve of an AM modulator for high-power broadcasting stations
DE2832311A1 Increasing information content of digital transmissions - involves transmitting measuring signals in series of subgroups
DE2832264A1 Increasing data content of telemetry signal - using logarithmic transfer characteristic during coding
CH630498A5 Arrangement for the automatic switching of directional radio systems operated in parallel.
CA1052865A Fibre network for optoelectronic transmission of data between subscriber stations
DE2805705A1 Data communications network linking processors via single highway - functions by each processor sending own address and address of next processor due for access
CH632365A5 Data exchange process between multiple partners.
DE2801165A1 PROCESS FOR IMPROVING THE EFFICIENCY OF THE MODULATOR STAGE OF TRANSMITTERS
DE2748782A1 METHOD OF MONITORING PULSE CODE MODULATED DATA TRANSMISSION
IT1087539B Stabilising circuit voltage controlled oscillator - has phase discriminator producing frequency correction signal for centre frequency and modulation slope in PSK system