ENSR CORP

Overview

Total Patents

24

About

ENSR CORP has a total of 24 patent applications. Its first patent ever was published in 1983. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets environmental technology, basic materials chemistry and machines are PREMO LUBRICATION TECHN, CANNON PRUTZMAN TREATING PROCE and KERR MCGEE REFINING CORP.

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Patent filings in countries

World map showing ENSR CORPs patent filings in countries

#	Country	Total Patents
#1	United States	7
#2	Canada	4
#3	EPO (European Patent Office)	3
#4	Australia	2
#5	Mexico	2
#6	Brazil	1
#7	Germany	1
#8	Japan	1
#9	Republic of Korea	1
#10	Taiwan	1
#11	WIPO (World Intellectual Property Organization)	1

Patent filings per year

Chart showing ENSR CORPs patent filings per year from 1900 to 2020

Similar Companies

PREMO LUBRICATION TECHN 89% similarity

CANNON PRUTZMAN TREATING PROCE 83% similarity

KERR MCGEE REFINING CORP 82% similarity

TSEGELSKY VALERY GRIGORIEVICH 82% similarity

CRI CO LTD 81% similarity

LESLIE EUGENE H 81% similarity

GEN PETROLEUM CORP 81% similarity

ORMAT PROCESS TECHNOLOGIES INC 80% similarity

WAIT JUSTIN F 80% similarity

PENNSYLVANIA PETROLEUM RES COR 80% similarity

Focus industries

#	Industry
#1	Environmental technology
#2	Basic materials chemistry
#3	Machines
#4	Chemical engineering
#5	Electrical machinery and energy
#6	Surface technology and coating
#7	Civil engineering

Focus technologies

#	Technology
#1	Liquid hydrocarbon mixture production
#2	Unspecified technologies
#3	Contaminated soil reclamation
#4	Separation
#5	Water treatment
#6	Magnets and transformers
#7	Electrolytic processes
#8	Chemical means for extinguishing fires
#9	Climate change mitigation in wastewater treatment
#10	Solid waste disposal

Top inventors

#	Name	Total Patents
#1	Darian Saeed T	11
#2	Weinberg Stephen P	7
#3	Massey Michael J	4
#4	Hopper David R	4
#5	Weinberg Stephen Peter	2
#6	Darian Saeed Towfighi	2
#7	Sutefuan Piitaa Ueinbeegu	1
#8	Dedecker Mark N	1
#9	Fowler David E	1
#10	Johnson Dennis W	1

Latest patents

Publication	Filing date	Title
US5286386A	1992-07-02	Solvent extraction process for treatment of oily substrates
US5154831A	1990-10-02	Solvent extraction process employing comminuting and dispersing surfactants
US5102510A	1990-08-23	Process for electrochemical dehalogenation of organic contaminants
US5082012A	1990-07-02	Simplified apparatus for decontaminating electrical apparatus contaminated with PCBs
US5026432A	1989-08-14	Method and apparatus for removing and disposing of contaminated concrete
US5055196A	1988-12-22	Extraction process to remove pcbs from soil and sludge
AU7784787A	1987-07-30	Reclassification of electrical apparatus contaminated with pcb
US4814021A	1987-07-27	Apparatus and method for reclassifying electrical apparatus contaminated with PCB