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DYNA MAGNETIC DEVICES INC

Overview
  • Total Patents
    11
About

DYNA MAGNETIC DEVICES INC has a total of 11 patent applications. Its first patent ever was published in 1959. It filed its patents most often in United States, Germany and United Kingdom. Its main competitors in its focus markets audio-visual technology, telecommunications and basic communication technologies are DANAVOX AS, BRUCKHOFF APPARATEBAU GMBH and SHENZHEN VOXTECH CO LTD.

Patent filings in countries

World map showing DYNA MAGNETIC DEVICES INCs patent filings in countries
# Country Total Patents
#1 United States 7
#2 Germany 2
#3 United Kingdom 2

Patent filings per year

Chart showing DYNA MAGNETIC DEVICES INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sebesta G 3
#2 Hofer Alan 2
#3 Sebesta George J 2
#4 Carlisle Richard W 2
#5 Howard Fener 1
#6 Mellen A 1
#7 John Sebesta George 1
#8 Carlisle Richard Wallace 1
#9 Carlisle R 1
#10 Sebesta George John 1

Latest patents

Publication Filing date Title
US4006318A Inertial microphone system
US3789166A Submersion-safe microphone
US3733445A Inertial reaction transducers
US3723670A Head contact microphone system
GB1237566A Inertial reaction transducers
US3454896A Miniature audio amplifiers
US3432622A Sub-miniature sound transducers
US3076062A Hearing-aid sound transducer