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MUIRHEAD AND CO LTD

Overview
  • Total Patents
    38
About

MUIRHEAD AND CO LTD has a total of 38 patent applications. Its first patent ever was published in 1963. It filed its patents most often in Canada and United States. Its main competitors in its focus markets audio-visual technology are LIUZHOU LONGHUI TECHNOLOGY CO LTD, LIUZHOU YIHUBAIYING TECHNOLOGY CO LTD and NORDSPACE AB.

Patent filings in countries

World map showing MUIRHEAD AND CO LTDs patent filings in countries
# Country Total Patents
#1 Canada 37
#2 United States 1

Patent filings per year

Chart showing MUIRHEAD AND CO LTDs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

# Technology
#1 Television

Top inventors

# Name Total Patents
#1 Bell John 7
#2 Tucker Edwin W 5
#3 Hoer Kenneth G 5
#4 Kirchel Alan A 4
#5 Cannon Frank H 3
#6 Richards Robert D 3
#7 Foll John V 3
#8 Sieber Peter W 3
#9 Smith Kenneth S 2
#10 Phillips Eric T A 2

Latest patents

Publication Filing date Title
CA539381A Photomultiplier modulator circuit
CA694683A Ship stabilization
CA563286A Electric instrument spindle setting device
CA756727A Anti-stiction device for rotating electrical components
CA539383A Message carriers for facsimile scanning systems
CA592308A Phototelegraph or facsimile receivers
CA601969A Control gear for ship stabilisation
CA606686A Electrolytic recording media
CA860052A Ships' stabilizer control systems
CA609918A Facsimile electrolytic recording media
CA763801A Sheet securing clips for a facsimile telegraph drum or the like
CA546957A Stabilized standard frequency oscillator
CA588613A Circuit arrangements for photo-electric multiplier cells
CA563283A Miniature rotating electrical machines
CA741105A Ship stabilization device
CA839876A Facsimile receivers
CA611137A Electrolytic recording medium
CA610910A Protective apparatus for electro-sensitive paper recorders
CA582752A Facsimile apparatus
CA699677A Facsimile telegraph apparatus