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DULLIEN FRANCIS A L

Overview
  • Total Patents
    20
About

DULLIEN FRANCIS A L has a total of 20 patent applications. Its first patent ever was published in 1974. It filed its patents most often in United States, Canada and Australia. Its main competitors in its focus markets chemical engineering, machines and environmental technology are SCANDFILTER AB, DAPHNE TECH SA and TELLER ENVIRONMENTAL SYSTEMS.

Patent filings per year

Chart showing DULLIEN FRANCIS A Ls patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dullien Francis A L 19
#2 Viltard Jean-Charles 5
#3 Diab Edmond Di 2
#4 Durand Daniel 2
#5 Spink Donald R 2
#6 Grinbergs Peter Karl 1

Latest patents

Publication Filing date Title
JP2006136886A Method for removing particles contained in fluid stream and device for the same
US6383263B1 Device intended for mechanical separation of high-temperature sand present in a gas stream
US6068674A Removal of suspended fine particles from gases by turbulent deposition
US5626651A Method and apparatus for removing suspended fine particles from gases and liquids
CA2168486A1 Particle agglomeration and precipitation from a gaseous stream
CA2187375A1 Method and device for removing particles from a fluid stream
EP1142620A1 Method for removing particles from a fluid stream
GB9407441D0 Removal of suspended fine particles from gases and liquids
CA2129966A1 Method and apparatus for removing suspended fine particles from gases and liquids
CA1033291A Gas scrubber