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ROTRON INC

Overview
  • Total Patents
    113
About

ROTRON INC has a total of 113 patent applications. Its first patent ever was published in 1967. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets electrical machinery and energy, engines, pumps and turbines and measurement are JUNKALOR GMBH, LEVITRONIX GMBH and SUNDYNE CORP.

Patent filings per year

Chart showing ROTRON INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Brown Fred A 19
#2 Grouse Alan F 8
#3 Reffelt James 8
#4 Harris Dwight E 7
#5 Kant Wayne D 5
#6 Desy Jacques J 5
#7 Deavers Clyde J 5
#8 Singleton Bruce 5
#9 Zoehfeld Gunther 4
#10 Patel Jay 4

Latest patents

Publication Filing date Title
US6453504B1 Power driven wiper system for outside vehicle mirrors
US5546295A Electrical power converter, power supply, and inverter with series-connected switching circuits
EP0660745A1 Biofilter with modular trays
US5117167A Commutating energy suppression circuit for an electronically commutated DC motor
US4845411A Brushless DC motor and encoding technique
US4633110A Motor with stator on printed circuit assembly
US4618806A Ironless, brushless DC motor with wave-winding
US4563622A Simple brushless DC fan motor
US4542768A Pressure relief valve
US4564793A Brushless DC motor with improved starting
CA1205115A Simple brushless dc fan motor
US4553075A Simple brushless DC fan motor with reversing field
EP0090514A1 A temperature tracking D.C. motor speed controlled fan
US4494028A Integral coaxial commutation and rotor magnets and apparatus and method for making same
US4438362A Self-starting, direct current motor with permanent magnets of varied magnetic strength
US4484114A Self-starting brushless DC motor
US4506218A Condition sensing arrangement for ac machines
US4365187A Brushless D.C. motor
WO8002445A1 Solid state blower
CA1058128A Fan with noise reduction