HANSEN ENGINE CORP innovation strategy

Patent filings in countries

#	Country	Total Patents
#1	United States	16
#2	EPO (European Patent Office)	5
#3	Australia	2
#4	Canada	2
#5	Japan	2
#6	Republic of Korea	2
#7	WIPO (World Intellectual Property Organization)	2
#8	China	1
#9	Germany	1
#10	France	1
#11	United Kingdom	1
#12	Italy	1
#13	New Zealand	1
#14	Sweden	1

#	Technology
#1	Internal-combustion piston engines
#2	Cyclically operating valves
#3	Rotary-pistons
#4	Climate change mitigation in transportation
#5	Rotary pistons
#6	Special machines
#7	Controlling combustion engines
#8	Cylinders for combustion engines
#9	Unspecified technologies
#10	Venting or aerating devices

Publication	Filing date	Title
US5556267A	1994-10-31	Double acting pump
US5474036A	1994-02-25	Internal combustion engine with rotary valve assembly having variable intake valve timing
US5081966A	1991-03-08	Internal combustion engine with rotary valve assembly
US5092752A	1990-04-27	Seal assembly for a rotary device
US4813392A	1988-07-08	Rotary valve assembly
JPS6483876A	1987-09-14	Gas compressor
NZ221650A	1987-09-02	Orbital air pump compressor
AU7794487A	1987-09-02	Orbit gas compressor
US4782656A	1987-05-21	Rotary valve assembly for engine
JPS6388211A	1986-09-22	Internal combustion engine
IT8621779D0	1986-09-22	Rotary valve assembly for controlling fluid flow
GB8622782D0	1986-09-22	Internal combustion engine having a rotary valve assembly
CA1279018C	1986-09-12	Internal combustion engine with rotary combustion chamber
US4773364A	1986-08-22	Internal combustion engine with rotary combustion chamber
US4692104A	1986-02-18	Rotary pumping apparatus with radial seal assemblies on piston
US4667468A	1985-03-25	Rotary internal combustion engine
US4618318A	1985-03-25	Vane and seal assembly
US4612886A	1984-11-15	Internal combustion engine with rotary combustion chamber
US4507067A	1982-12-06	Rotary device with elliptical rotor in elliptical chamber
US4494500A	1982-06-01	Rotary valve assembly