LOUGHRIDGE MATTHEW H innovation strategy

Patent filings in countries

#	Country	Total Patents
#1	United States	53
#2	Canada	6

#	Industry
#1	Transport
#2	Machines
#3	Optics
#4	Audio-visual technology
#5	Telecommunications
#6	Electrical machinery and energy
#7	Mechanical elements
#8	Civil engineering

#	Technology
#1	Guiding railway traffic
#2	Unspecified technologies
#3	Vehicle brake control systems
#4	Cameras
#5	Special information storage
#6	Antennas
#7	Venting or aerating devices
#8	Power supply for electric vehicles
#9	Machines for making railways
#10	Electrically-conductive connections

Publication	Filing date	Title
US2283680A	1940-05-15	Justifying mechanism
US2255797A	1939-03-13	Block system
US2242401A	1938-08-06	Siphon
US2266779A	1938-04-30	Code selective system
US2209342A	1937-10-01	Selective photographing system
US2198627A	1937-07-22	Photo-printing system and apparatus
US2206907A	1937-01-15	Differential mechanism
US2196999A	1936-12-10	Liquid control system
US2164331A	1936-02-24	Block system
US2171579A	1935-10-28	Liquid control system
US2131743A	1934-12-03	Venturi siphon
US2119550A	1934-07-19	Speed control and braking system
US2101861A	1932-05-10	Calculating and recording system
US2151709A	1932-02-24	Automatic railway switching system
US2010027A	1931-05-11	Differential load brake
US2037248A	1931-02-12	Vending machine
US1969895A	1930-11-10	Phonograph record and method of playing same
US1901915A	1930-06-23	Lifting jack
US2037034A	1930-05-31	Braking system
US1813941A	1930-05-31	Railway tie and rail fastening