WALKER HERVEY S innovation strategy

Patent filings in countries

#	Country	Total Patents
#1	United States	15
#2	Canada	6

#	Industry
#1	Electrical machinery and energy
#2	Machines
#3	Civil engineering

#	Technology
#1	Installation of electric cables
#2	Unspecified technologies
#3	General building constructions
#4	Cables and insulators
#5	Electrically-conductive connections

#	Name	Total Patents
#1	Walker Hervey S	21

Publication	Filing date	Title
US2297179A	1941-04-19	Underfloor duct system
US1995407A	1934-08-07	Armored cable
US2046351A	1934-05-26	Underfloor duct box
US2002068A	1934-01-04	Under floor duct system
US2063569A	1933-11-25	Underfloor duct box
US1976817A	1932-03-18	Outlet fitting
US1921056A	1931-05-29	Duct fitting
US1921057A	1931-05-29	Duct connection box
US1809613A	1929-03-15	Accessory for underfloor duct systems
US1774740A	1928-10-27	Standpipe fitting
US1884424A	1928-01-12	Under-floor duct system
US1693682A	1926-08-26	Underfloor duct system
US1758989A	1926-06-21	Underfloor duct system and method of making
US1626570A	1926-05-15	Electrical wiring system
US1592548A	1925-10-19	Underfloor duct system
CA316663A	None	Underfloor wiring system
CA316664A	None	Underfloor wiring system
CA266280A	None	Floor duct system
CA289604A	None	Under-floor duct
CA367029A	None	Armoured cable