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ALAR ENG CORP

Overview
  • Total Patents
    29
About

ALAR ENG CORP has a total of 29 patent applications. Its first patent ever was published in 1972. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets chemical engineering, environmental technology and machines are LEOPOLD CO INC F B, SPARKLER MFG COMPANY and PIELKENROOD VINITEX BV.

Patent filings in countries

World map showing ALAR ENG CORPs patent filings in countries
# Country Total Patents
#1 United States 21
#2 Canada 5
#3 Germany 1
#4 United Kingdom 1
#5 Mexico 1

Patent filings per year

Chart showing ALAR ENG CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 White Harold R 22
#2 Doncer Alex J 7
#3 Doncer Alexander J 3
#4 Doncer Alexander J Jr 2
#5 White Harold Robert 2
#6 Doncer Jr Alexander J 2
#7 Doncer Jr Alex J 1
#8 Doncer Alexander John 1
#9 Doncer A 1
#10 White H 1

Latest patents

Publication Filing date Title
US5660124A Sludge processor
CA2048453A1 Pressurized continuous operating rotary drum filter and method
US5055205A Pressurized continuous operating rotary drum filter and method
US4839057A Water treatment system
US4742852A Feeder
CA1217755A Filter aid
US4511468A Rotary vacuum pre-coat filter apparatus
US4510061A Method of filtering
US4681682A Air flotation clarifier
US4476018A Field assembled clarifier
US4477939A Removable sludge cleaner for tanks
US4510055A Filter aid
US4361488A Liquid separating and recycling
US4257900A Method of clarifying liquids
US4193871A Clarifier
US4045853A Method of manufacturing filter drums
US4083787A Rotary vacuum filter
CA1067833A Batch rotary vacuum filter with gradual precoat removal with cake
GB1502128A Rotary vacuum filters
US3951795A Process and apparatus for treating fatty waste water