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WILLIAM YORATH LEWIS

Overview
  • Total Patents
    20
About

WILLIAM YORATH LEWIS has a total of 20 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United Kingdom, Germany and Ireland. Its main competitors in its focus markets thermal processes are INT COMBUSTION ENGINEERING COR, KINDERVATER JULIUS and ANDRIOLI VITTORIO.

Patent filings in countries

World map showing WILLIAM YORATH LEWISs patent filings in countries
# Country Total Patents
#1 United Kingdom 17
#2 Germany 2
#3 Ireland 1

Patent filings per year

Chart showing WILLIAM YORATH LEWISs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Thermal processes

Latest patents

Publication Filing date Title
GB656885A Improvements in or relating to water-tube steam generators
GB614654A Improvements in or relating to water-tube steam generators
GB590603A Improvements in or relating to waste heat or surplus heat boilers
GB567322A Improvements in or relating to safety devices for steam generators
GB557085A Improvements in or relating to field-tubes for heat-transfer apparatus, such as water-tube boilers
IE16095L Water-tube steam generators
GB535696A Improvements in or relating to water-tube steam generators of the field-tube type
GB485196A Improvements in field tubes for heat-transfer apparatus such as water-tube boilers
GB470339A Improvements in and relating to water-tube boilers
GB462393A Improvements in and relating to water-tube steam generators of the field-tube type
GB436474A Improvements in heat-transfer apparatus, such as water-tube boilers, having field tubes
GB434023A Improvements in heat-transfer apparatus applicable to water-tube boilers
GB422220A Improvements relating to heat-transfer apparatus of the water-tube boiler type
GB380548A Improvements in heat-transfer apparatus applicable to water-tube boilers
GB211967A Improvements in and relating to water-tube boilers
GB197811A Improvements relating to apparatus for heating or cooling fluids
GB200234A Improvements in water tube boilers
GB145109A Improvements in appliances for effecting heat-transference between gases, vapours orliquids