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OAK MFG CO

Overview
  • Total Patents
    276
About

OAK MFG CO has a total of 276 patent applications. Its first patent ever was published in 1934. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets electrical machinery and energy, basic communication technologies and machines are GRIGSBY ALLISON COMPANY INC, OAK ELECTRO NETICS CORP and HAYDON SWITCH INC.

Patent filings in countries

World map showing OAK MFG COs patent filings in countries
# Country Total Patents
#1 United States 139
#2 United Kingdom 63
#3 Canada 48
#4 Germany 14
#5 France 12

Patent filings per year

Chart showing OAK MFG COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Mastney Edward J 43
#2 Williams John H 26
#3 Howell Hugh A 14
#4 Dressel Henry M 14
#5 Allison Kenneth C 12
#6 Fichter Ludwig J 10
#7 Schwarzenbach Earl E 7
#8 English Robert R 6
#9 Gelzer John R 6
#10 Jedd Jerry L 6

Latest patents

Publication Filing date Title
US3254539A Fine tuner
US3223813A Plunger switch having contacts readily convertible between normally open and normally closed positions
US3209110A Self-aligning contact assembly
US3201698A Receiver if trap using a bifilar winding
US3174000A Arc resistant switch
US3200208A Rotary selector switch construction with rotor interlocking means
US3244012A Fine tuner
US3188404A Rotary electric switch with interfitting means
US3174002A Spring detent and terminal structure in a slide switch
US3118998A Switch contact structure
US3183333A Illuminated push button switch using springs as conductive elements
US3142198A Push button mechanism
GB918826A Mechanical lock-out device
GB952935A Rotary electric switch means
US3111636A Balanced high pass vhf antenna coupler having one shunt inductor centertapped to ground and another shunt inductor centertap floating
US3096665A Index mechanism
GB907185A Rotary electric switch mechanism
US3015706A Electric switch
US3069639A Turret tuner with coaxial vernier adjustment
GB901331A Electric switch assembly