BROWN WALTER J innovation strategy

Patent filings in countries

#	Country	Total Patents
#1	United States	20
#2	Canada	10

#	Industry
#1	Electrical machinery and energy
#2	Basic communication technologies
#3	Machines
#4	Control
#5	Environmental technology
#6	Engines, pumps and turbines

#	Technology
#1	Electric motor controls
#2	Modulation
#3	Unspecified technologies
#4	Resonators
#5	AC and DC conversion devices
#6	Systems for regulating electrical variables
#7	Internal-combustion piston engines
#8	Climate change mitigation in transportation
#9	Systems controlling non-electric variables
#10	Magnets and transformers

#	Name	Total Patents
#1	Brown Walter J	30

Publication	Filing date	Title
US3331004A	1964-07-03	Control system for series-wound alternating current motors
US3085170A	1959-11-19	Rotational speed sensing modulator
US2940055A	1956-06-22	Phase modulator and clipper
US2940054A	1956-03-30	Stabilized phase modulators
US2885621A	1954-07-12	Current regulating circuits for motor control
US2799819A	1954-04-19	Speed control for a series wound electric motor
US2777106A	1953-05-01	Electric control system for adjusting and controlling speed of a series motor
US2799818A	1953-05-01	Electrical control systems for adjusting and controlling the speed of a series wound electric motor
US2721968A	1951-09-15	Motor control system
US2640959A	1950-07-08	Motor control circuit
US2842345A	1950-04-07	Thermal regulating system
US2697197A	1949-08-17	Control system using multiple winding saturable reactors
US2697194A	1949-08-17	Saturable reactor motor control system
US2696583A	1949-08-17	Saturable reactor using permanent magnets
US2554695A	1948-09-11	Current limit control circuit
US2524762A	1947-10-15	Phase shift circuit
US2524760A	1947-08-28	Phase shift bridge
US2524761A	1947-08-28	Phase shift system
US2524759A	1947-08-28	Phase shift network
US1531069A	1922-01-07	Internal-combustion engine