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POLLUTION CONTROL INC

Overview
  • Total Patents
    22
About

POLLUTION CONTROL INC has a total of 22 patent applications. Its first patent ever was published in 1968. It filed its patents most often in United States, Germany and France. Its main competitors in its focus markets environmental technology, chemical engineering and machines are HAGA ZENTRIFUGEN GMBH, SPINTEK SYSTEMS INC and KESTNER EVAPORATOR COMPANY.

Patent filings in countries

World map showing POLLUTION CONTROL INCs patent filings in countries
# Country Total Patents
#1 United States 7
#2 Germany 4
#3 France 4
#4 Italy 4
#5 Canada 1
#6 United Kingdom 1
#7 Sweden 1

Patent filings per year

Chart showing POLLUTION CONTROL INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Humiston Gerald F 5
#2 Cotton Barton L 2
#3 Reckers Donald J 2
#4 Cotton B 1
#5 Murray Bill D 1
#6 Cotton Barton Lester 1
#7 Humiston Gerald Francis 1
#8 Humiston G 1
#9 Reckers D 1
#10 Brewer Jack G 1

Latest patents

Publication Filing date Title
US5313991A Apparatus for containing oil and waste spills at a loading and unloading line connection
US3957588A Evaporative and centrifugal apparatus for effecting concentration and/or purification of feed stocks
US3897758A Rotary internal combustion engine
DE2424147A1 VALVE ARRANGEMENT FOR ROTARY PISTON COMBUSTION ENGINES
GB1393058A Rotary positive displacement engine
US3893894A Low temperature water purification system
US3837491A Liquid purification apparatus and process
CA930398A Aeration nozzle
US3642134A Method and apparatus for tertiary treatment of effluent
US3525436A Sewage treatment plant