WHITING ROLL UP DOOR MFG CORP innovation strategy

Patent filings in countries

#	Country	Total Patents
#1	United States	10
#2	Canada	7
#3	United Kingdom	6
#4	Brazil	4
#5	France	3
#6	EPO (European Patent Office)	1
#7	WIPO (World Intellectual Property Organization)	1

#	Technology
#1	Vehicle windows, roofs and doors
#2	Unspecified technologies
#3	Locks
#4	Doors and windows
#5	Unspecified technologies
#6	Bolts for doors or windows
#7	Ladders
#8	Springs
#9	Hinges for doors or windows
#10	Indexing scheme relating to hinges

Publication	Filing date	Title
GB9607036D0	1996-04-03	Locking mechanism for a roll-up door
GB9600569D0	1996-01-11	Self-tightening side lock for a roll-up door
CA2087319A1	1993-01-14	Spring balancer for a roll-up door
US5022691A	1990-08-17	Side lock for a roll-up door
EP0470080A1	1990-02-26	Pivotal ladder
US4991639A	1989-12-06	Guard members for preventing shifting cargo from intefering with the operation of a roll-up door
US4957301A	1989-10-02	Non-crushable side seal members for a roll-up door
US4930561A	1989-02-28	Roll-up door joint construction
US4771816A	1986-05-02	Plastic hinged and weatherstripped metal overhead door
US4379479A	1982-06-01	Roller assembly
US4306756A	1980-04-11	Roller assembly
US3977123A	1975-06-25	Upwardly-acting door structure