NORTHERN TELECOM innovation strategy

Patent filings in countries

#	Country	Total Patents
#1	United States	7
#2	Sweden	3
#3	Portugal	2
#4	Australia	1
#5	Canada	1
#6	Republic of Korea	1
#7	WIPO (World Intellectual Property Organization)	1

#	Technology
#1	Telephonic communication
#2	Digital information transmission
#3	Electric digital data processing
#4	Selecting
#5	Optical systems
#6	Wireless communication networks
#7	Semiconductor devices
#8	Multiplex communication
#9	Data processing systems
#10	Transmission

Publication	Filing date	Title
US6697842B1	1998-10-07	Dynamic context filters for communication and information management
US5960349A	1997-05-20	Enhanced cellular layout for CDMA networks having six-sectored cells
US5703980A	1996-09-20	Method for low-loss insertion of an optical signal from an optical fibre to a waveguide integrated on to a semiconductor wafer
US5825876A	1996-02-12	Time based availability to content of a storage medium
US5193166A	1992-04-20	Cache-memory architecture comprising a single address tag for each cache memory
US4912340A	1988-10-21	Circuit for generating non-overlapping two-phase clocks
CA1163299A	1982-03-05	Positioning device for optical system element