NATHAN MICHELMAN innovation strategy

Patent filings in countries

#	Country	Total Patents
#1	United States	21
#2	United Kingdom	5

#	Industry
#1	Civil engineering
#2	Machines
#3	Machine tools
#4	Mechanical elements
#5	Electrical machinery and energy

#	Technology
#1	Doors and windows
#2	Unspecified technologies
#3	Hinges for doors or windows
#4	Making metal sheets
#5	Indexing scheme relating to hinges
#6	Foundations and excavations
#7	Wing fittings
#8	Nails
#9	Shafts
#10	Portable lighting devices

#	Name	Total Patents
#1	Nathan Michelman	21

Publication	Filing date	Title
US2696250A	1953-08-28	Rolling door
US2622452A	1952-01-09	Driving mechanism for rolling doors and the like
US2564208A	1949-12-02	Fire door
US2558870A	1948-10-01	Marine light unit
US2552992A	1947-05-28	Door construction
GB619167A	1946-11-23	Method of making tapered metal tubes
US2454881A	1946-09-12	Adjustable stroke eccentric mechanism
US2454880A	1946-09-12	Driving means for rolling doors
GB601194A	1945-11-12	Driving mechanism for roll-up doors
US2390117A	1944-08-12	Rolling door construction
US2390116A	1944-08-12	Rolling door construction
US2418312A	1944-08-12	Method of making tapered tubes
GB578055A	1944-04-04	Improvements in and relating to rolling door constructions
GB570469A	1943-10-20	Rolling door construction
US2350288A	1943-09-04	Guide rail for rolling doors
US2350287A	1943-08-13	Slat construction for rolling doors
GB572476A	1943-06-16	Improvements in and relating to sliding doors for industrial buildings
US2350286A	1943-03-25	Rolling door construction
US2327316A	1942-08-11	Door construction
US2327315A	1941-12-02	Closure for building constructions