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ELGIN SOFTENER CORP

Overview
  • Total Patents
    33
About

ELGIN SOFTENER CORP has a total of 33 patent applications. Its first patent ever was published in 1926. It filed its patents most often in United States and Canada. Its main competitors in its focus markets machines, mechanical elements and environmental technology are AQUA MATIC INC, AUTOMATIC PUMP & SOFTENER CORP and LINDSAY COMPANY.

Patent filings in countries

World map showing ELGIN SOFTENER CORPs patent filings in countries
# Country Total Patents
#1 United States 26
#2 Canada 7

Patent filings per year

Chart showing ELGIN SOFTENER CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Mcgill Chester T 15
#2 Nickols Chester R 4
#3 Harry Mansen 4
#4 Andrew Kromhout 4
#5 Yaeger Edward T 2
#6 Kromhout Andrew 2
#7 Fred Dubruiel Omar 2
#8 Mccanna Edward P 1
#9 Daniels Lee G 1
#10 Rowe Harry C Jr 1

Latest patents

Publication Filing date Title
US3143140A Automatic water softener control valve and operating means therefor
US3075555A Semi-automatic direct salting water softener
US2919805A Water softener
US2924335A Water softener
US2743739A Multiport valves
US2742421A Water conditioning apparatus
US2515235A Chemical treatment feed indicator
US2607323A Reciprocating type fluid operable motor
US2610511A Valve actuator
US2570258A Fluid treating apparatus
US2644484A Multiport valve
US2529505A Multiport valve
US2447520A Electrovolumetric control device for a water treating device comprising a motor operated valve mechanism having an electrically connected time switch
US2388268A Multiport rotary valve
US2398437A Multiport valve
US2354694A Valve and automatic operating mechanism therefor
US2310978A Automatic valve operating mechanism
US2323341A Proportional chemical feeder
US2209989A Rotary type multiport valve
US2231460A Multiport valve