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QUESTOR IND INC

Overview
  • Total Patents
    14
About

QUESTOR IND INC has a total of 14 patent applications. Its first patent ever was published in 1997. It filed its patents most often in Canada, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets chemical engineering, environmental technology and electrical machinery and energy are CANSOLV TECH INC, ANHUI BAYI CHEMICAL IND CO LTD and GENERON IGS INC.

Patent filings in countries

World map showing QUESTOR IND INCs patent filings in countries
# Country Total Patents
#1 Canada 7
#2 United States 3
#3 WIPO (World Intellectual Property Organization) 2
#4 China 1
#5 EPO (European Patent Office) 1

Patent filings per year

Chart showing QUESTOR IND INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Keefer Bowie G 11
#2 Mclean Christopher 4
#3 Mclean Christopher R 3
#4 Connor Denis J 2
#5 Keefer Bowie Gordon 2
#6 Jeziorowski Les 2
#7 Doman David G 2
#8 Brown Michael J 2
#9 Shaw Ian 1
#10 Larisch Belinda 1

Latest patents

Publication Filing date Title
CA2274301A1 Chemical reactor with pressure swing adsorption
CA2274390A1 Multistage chemical separation method and apparatus using pressure swing adsorption
CA2274240A1 Electrical current generation system
CA2274318A1 Pressure swing adsorption with axial or centrifugal compression machinery
CA2274312A1 Modular pressure swing adsorption apparatus with clearance-type valve seals
CA2274388A1 Surge adsorber flow regulation for modular pressure swing adsorption
CA2274286A1 Rotary pressure swing adsorption apparatus
US6056804A High frequency rotary pressure swing adsorption apparatus
US6051050A Modular pressure swing adsorption with energy recovery