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HUNGERFORD & TERRY INC

Overview
  • Total Patents
    11
About

HUNGERFORD & TERRY INC has a total of 11 patent applications. Its first patent ever was published in 1942. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets chemical engineering, environmental technology and machines are ELECTROPHOR INC, AQUA ION SYST and XIAN RUNCHUAN ENVIRONMENTAL PROTECTION TECH CO LTD.

Patent filings in countries

World map showing HUNGERFORD & TERRY INCs patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 1
#3 United Kingdom 1

Patent filings per year

Chart showing HUNGERFORD & TERRY INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hungerford Jr Churchill 6
#2 Davis Raymond R 3
#3 Langberg Alfred M 2
#4 Reutter John G 2
#5 Debus Alvin P 2
#6 Weston Richard G 1
#7 Fackler Richard B 1
#8 Francis Massorley John 1

Latest patents

Publication Filing date Title
US4028241A Apparatus for and method of recovering water used to backwash and rinse a filter
CA1028434A Apparatus for and method of recovering water used to backwash and rinse a filter
US3272340A Quickly detachable strainer system for water treatment tanks
US3167506A Method of treating water to remove iron and manganese
US2891008A Water purification coagulation apparatus with perforate plate flow controllers
US2628720A Backwash control equipment for filters
US2532918A Fluid distributing or collecting system for water softeners, filters, and the like
US2460011A Base exchange water treating equipment
US2372952A Condensate reclaiming system
US2360958A Distributing head for the manifolds of filters or like devices