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LITTWIN ARTHUR K

Overview
  • Total Patents
    49
About

LITTWIN ARTHUR K has a total of 49 patent applications. Its first patent ever was published in 1959. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets machine tools, electrical machinery and energy and measurement are SCHMID WOLFGANG KARL, S P D S P A and WALKER O S CO INC.

Patent filings in countries

World map showing LITTWIN ARTHUR Ks patent filings in countries
# Country Total Patents
#1 United States 22
#2 United Kingdom 14
#3 Canada 9
#4 Germany 4

Patent filings per year

Chart showing LITTWIN ARTHUR Ks patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Littwin Arthur K 31
#2 Littwin Arthur Kenneth 8
#3 Littwin Robert L 2
#4 Littwin Donald F 1
#5 K Littwin Arthur 1

Latest patents

Publication Filing date Title
US4270087A Apparatus for testing permanent magnets using electro-magnets and Hall sensors
US4208656A Battery lift magnet control
US3938011A Tape degausser
US3590351A Motor control, including brake applying, and suppressing of the counter emf, and method
GB1270701A Drive circuit for a d.c. motor
US3588651A Solid state electrical control for a reversibly movable member
US3573586A Servo control for movement of a device through successive steps
GB1207210A Improvements in or relating to apparatus for and method of magnetizing
US3579053A Magnetizing and demagnetizing apparatus and method
US3571911A Method of treating a workpiece
US3949288A Movement control
US3473287A Magnetically and electrically controlled measuring and packaging apparatus and method
US3564292A Electrical interstage control
US3417295A Apparatus for and method of magnetizing circumferential members
GB1143227A Movement control apparatus
US3401313A Apparatus and method for controlling magnetism
US3378734A Method of demagnetizing
US3445620A Apparatus for and method of demagnetizing
US3478876A Magnetic parts sorter
US3360694A Electrical control means