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KELLER CORP

Overview
  • Total Patents
    49
About

KELLER CORP has a total of 49 patent applications. Its first patent ever was published in 1972. It filed its patents most often in United States, Australia and Canada. Its main competitors in its focus markets basic materials chemistry, machines and environmental technology are NEUFTEC LTD, TAIHOKOHZAI CO LTD and POLAR MOLECULAR CORP.

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Keller Leonard J 15
#2 Keller Leonard James 10
#3 Keller L 9
#4 Reonaado Jieemusu Keraa 2
#5 Batzdorff Alfred 2
#6 Keller L J 1
#7 Corp L J 1
#8 Reonaado Jiei Keraa 1
#9 Mcclellan Elton 1
#10 Boldt Donald M 1

Latest patents

Publication Filing date Title
US5045087A Stabilized suspensions of carbon or carbonaceous fuel particles in water
US4313386A System for transport of mixtures of solid particulate fuel and air, and rotary distributor suitable for use therein
ES484675A1 A method for producing dry, pulverulent and highly reactive combustible (Machine-translation by Google Translate, not legally binding)
CA1113244A Single stage process for flashing to produce improved carbonaceous fuel and condensed liquids
ZA7904688B Method of producing pulverulent carbonaceous fuel
AU5060479A Separation of coal particles from alcohol by flashing
WO8000450A1 Method of producing pulverulent carbonaceous fuel
AU4590079A Removing gangue material from coal
US4192651A Method of producing pulverulent carbonaceous fuel
US4161368A Brick blending apparatus
US4146366A Method of removing gangue materials from coal
US4089657A Stabilized suspension of carbon in hydrocarbon fuel and method of preparation
US4097217A Method for converting combustor from hydrocarbonaceous fuel to carbonaceous fuel
JPS5355304A Fuel composition and method of making thereof
US4030893A Method of preparing low-sulfur, low-ash fuel
US4018293A Method and apparatus for controlled fracturing of subterranean formations
US4045092A Fuel composition and method of manufacture
US3968999A Method of making available fuels from arctic environments
US3883277A Rotary vane device with improved seals
US3807912A Fluid flow device having high degree of flexibility