KELLER LEONARD J

Overview

About

KELLER LEONARD J has a total of 11 patent applications. Its first patent ever was published in 1973. It filed its patents most often in Canada, Australia and United States. Its main competitors in its focus markets environmental technology, engines, pumps and turbines and thermal processes are DAOHONG WU, LIUZHOU DONGHOU BIOLOGY ENERGY TECHNOLOGY CO LTD and NEVES ALAN M.

Patent filings in countries

#	Country	Total Patents
#1	Canada	3
#2	Australia	2
#3	United States	2
#4	WIPO (World Intellectual Property Organization)	2
#5	Belgium	1
#6	EPO (European Patent Office)	1

#	Technology
#1	Reduction of greenhouse gas emissions
#2	Climate change mitigation in goods production
#3	Steam engine plants
#4	Steam generation
#5	Producer gas production
#6	Unspecified technologies
#7	Internal-combustion piston engines
#8	Manufacturing processes
#9	Solid waste disposal
#10	Rotary pistons

Publication	Filing date	Title
AU2432992A	1992-08-03	Processes and means for waste resources utilization
US5134944A	1991-02-28	Processes and means for waste resources utilization
US4953479A	1989-12-21	Methacoal integrated combined cycle power plants
CA1004710A	1974-03-06	Method of making available fuels from arctic environments
CA985957A	1973-04-30	Rotary vane device