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PERMOFLUX CORP

Overview
  • Total Patents
    14
About

PERMOFLUX CORP has a total of 14 patent applications. Its first patent ever was published in 1942. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets audio-visual technology, telecommunications and electrical machinery and energy are IFEELU INC, NAP ENTPR CO LTD and TEMCO JAPAN.

Patent filings in countries

World map showing PERMOFLUX CORPs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Canada 2
#3 United Kingdom 2

Patent filings per year

Chart showing PERMOFLUX CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Gilman Webster E 8
#2 Bierman Raymond C 2
#3 Heineman Lawrence M 2
#4 Gilman Wayne H 2
#5 Hansen Jr Ernest E 1

Latest patents

Publication Filing date Title
US2820846A Telephone recording pickups
US2611830A Transducer
US2459023A Transformer mounting
US2433898A Magnetostrictive vibrator unit
US2485278A Hand microphone and switch
US2413345A Communications equipment
US2394374A Communications equipment
GB599790A Improvements in electro-acoustic transducers
US2423014A Pressure-equalizing housing for transducers
US2458158A Magnetically shielded electrodynamic sound reproducer
US2440439A Permanent magnet electrodynamic transducer
CA461471A Transducer
CA463703A Transducer