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COULTER WALLACE H

Overview
  • Total Patents
    69
About

COULTER WALLACE H has a total of 69 patent applications. Its first patent ever was published in 1949. It filed its patents most often in Canada, United States and Belgium. Its main competitors in its focus markets measurement, basic communication technologies and computer technology are COULTER W H, COULTER W and GEN SCIENCE CORP.

Patent filings in countries

World map showing COULTER WALLACE Hs patent filings in countries
# Country Total Patents
#1 Canada 59
#2 United States 6
#3 Belgium 2
#4 Germany 2

Patent filings per year

Chart showing COULTER WALLACE Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Coulter Wallace H 44
#2 Hogg Walter R 38
#3 Claps William A 7
#4 Moran Joseph P 5
#5 Doty Edward N 4
#6 Klein Robert I 4
#7 Coulter Joseph R Jr 3
#8 Longman Millard D Jr 2
#9 Dorman Ervin L Jr 1
#10 Liedholz Gerhard A 1

Latest patents

Publication Filing date Title
CA1028396A Method and apparatus for finding the center amplitude of each pulse of a train of random amplitude asymmetric pulses
CA1002114A Apparatus and method for analyzing particle volume distribution
CA976276A System for displaying a data distribution curve on a 100% scale irrespective of the quantity of data sampled
CA971668A System for altering a data distribution display
CA1006270A Mathematic root computer
CA954587A Axial trajectory sensor for electronic particle study apparatus and method
US2799216A Apparatus for treatment of fluids requiring sterilization or pasteurization
US2743321A Amplifier having series-connected output tubes
US2656508A Means for counting particles suspended in a fluid
US2659775A Amplifier circuit having seriesconnected tubes
US2622150A Interference eliminating device for measuring instruments
CA829469A Aperture tube for electronic particle study apparatus
CA788086A Recovery vessel construction for particle study apparatus
CA754719A Apparatus for studying the physical properties of particles
CA863457A Particle analyzer threshold level control
CA753846A Particle counting apparatus with direct viewer
CA755741A Particle analyzing device
CA678343A Fluid metering system and apparatus
CA895123A Fluid transfer valve structure
CA907889A Particle analyzing method and apparatus employing multiple apertures and multiple channels per aperture