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ALEXANDER DUCKHAM & COMPANY LT

Overview
  • Total Patents
    14
About

ALEXANDER DUCKHAM & COMPANY LT has a total of 14 patent applications. Its first patent ever was published in 1932. It filed its patents most often in United Kingdom, France and Germany. Its main competitors in its focus markets basic materials chemistry, engines, pumps and turbines and medical technology are LABRIZOL CORP, INFINEUM USA LP and ETHYL PETROLEUM ADDITIVES LTD.

Patent filings in countries

World map showing ALEXANDER DUCKHAM & COMPANY LTs patent filings in countries
# Country Total Patents
#1 United Kingdom 7
#2 France 3
#3 Germany 2
#4 Spain 1
#5 United States 1

Patent filings per year

Chart showing ALEXANDER DUCKHAM & COMPANY LTs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Alexander Duckham 1
#2 Drake Frederick Benjamin 1

Latest patents

Publication Filing date Title
GB938886A Dispenser for applying a cleansing agent to the hand
DE825921C Fuel for internal combustion engines
GB615259A Dispensing apparatus for ointments, cleansers, pastes and like viscous materials
GB600191A Improvements in and relating to fuels used in internal combustion engines
GB497693A Improvements in or relating to means for securing containers for liquid in position of use in relation to a headpiece
GB499420A Improvements in or relating to bottles, flasks and like containers for liquids
US2110503A Upper cylinder lubricant
GB479903A Improvements in fuel for internal combustion engines of the compression-ignition type
DE612346C Process for cleaning surfaces covered with lubricating oil sludge
GB375724A Improved method of cleaning surfaces coated with lubricating oil sludge