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WESTREX CORP

Overview
  • Total Patents
    26
About

WESTREX CORP has a total of 26 patent applications. Its first patent ever was published in 1951. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets audio-visual technology, optics and electrical machinery and energy are ASS MOTION PICTURE TV PROD, BLUM & CO G M B H and HABERKERN OTTMAR.

Patent filings in countries

World map showing WESTREX CORPs patent filings in countries
# Country Total Patents
#1 United States 14
#2 Canada 4
#3 France 3
#4 United Kingdom 3
#5 Germany 2

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Davis Charles C 5
#2 Jacobs John H 3
#3 Davis Charles Crawford 2
#4 Browder Lewis B 1
#5 Stein Herbert S 1
#6 Manley Herbert A 1
#7 Shonnard John R 1
#8 Digney Charles J 1
#9 Holcomb Arthur L 1
#10 Marzan Peter R 1

Latest patents

Publication Filing date Title
US3204197A Control system for stabilizing the frequency of an oscillator
FR1276556A Facsimile recorder
US2979372A Record clamping and stripping mechanisms for facsimile machines and the like
GB810929A Improvements in or relating to magnetic sound transducing devices
US2979673A Tuning fork oscillator having separate magnetostrictive and magnetomotive controls
US2886652A Magnetic head with adjustable shield for controlling stray magnetic flux
GB793683A Optical sound film recording system
US2880281A Sound film recording system
FR1152046A Improvements to devices for photographic recording of sound on film
US2830131A Sound film recording system
US2710188A Locking means for elements of a film driving mechanism
US2878321A Magnetic tape record bearing a sound track and a control track
US2790349A Film gate
US2813453A Film editing machine
US2727097A Speed control for magnetic tape driving means utilizing the recorded bias signal
US2746130A Method of securing conductor to stylus
US2677096A Power supply apparatus
US2725785A Film marking unit for sound picture recording system
CA610953A Magnetic head with adjustable shield for controlling stray magnetic flux
CA710974A Pressure-responsive recording