PERLMAN WILLIAM innovation strategy

Patent filings in countries

#	Country	Total Patents
#1	United Kingdom	4
#2	United States	4
#3	Germany	3
#4	Spain	3
#5	Netherlands	3
#6	Belgium	2
#7	Canada	2
#8	France	2
#9	Ireland	2
#10	Argentina	1
#11	Austria	1
#12	Australia	1
#13	Bulgaria	1
#14	Czechoslovakia	1
#15	EPO (European Patent Office)	1
#16	Hungary	1
#17	India	1
#18	Italy	1
#19	Republic of Korea	1
#20	Luxembourg	1
#21	Malawi	1
#22	Mexico	1
#23	Norway	1
#24	Philippines	1
#25	Sweden	1
#26	WIPO (World Intellectual Property Organization)	1
#27	Yugoslavia (Serbia and Montenegro)	1
#28	South Africa	1

#	Technology
#1	Earth drilling
#2	Materials for miscellaneous applications
#3	Pipes
#4	Unspecified technologies
#5	Unspecified technologies
#6	Climate change mitigation in wastewater treatment

Publication	Filing date	Title
IE890732L	1989-03-07	Cementitious products
AU2277488A	1988-09-23	Improved multiple-stage coal seam fracing method
MW2987A1	1987-04-24	Multiple stage coal seam fracing method
PH22889A	1987-03-12	Improved multiple-stage coal seam fracing method
AR241456A1	1987-02-19	A method to form vertical linear fractures in an subterranean formation.
US4665990A	1985-10-17	Multiple-stage coal seam fracing method
US4566539A	1984-07-17	Coal seam fracing method
ES8104487A3	1980-04-21	A procedure for forming vertical linear fractures in a production formation of a underground (Machine-translation by Google Translate, not legally binding)
NL7906114A	1979-08-10	Method for forming mainly vertical linear breaks in an underground hydrocarbon layer.
CA1110163A	1979-05-30	Fracing process
US4186802A	1978-03-13	Fracing process
US2913261A	1957-07-16	Tube couplings