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HENRY ARTHUR JOHN SILLEY

Overview
  • Total Patents
    22
About

HENRY ARTHUR JOHN SILLEY has a total of 22 patent applications. Its first patent ever was published in 1948. It filed its patents most often in United Kingdom, United States and Germany. Its main competitors in its focus markets chemical engineering, basic materials chemistry and transport are SEPARATION DYNAMICS INC, SHANDONG SHENGXING CHEMICAL CO LTD and HILLS HENRY A.

Patent filings in countries

World map showing HENRY ARTHUR JOHN SILLEYs patent filings in countries
# Country Total Patents
#1 United Kingdom 11
#2 United States 7
#3 Germany 4

Patent filings per year

Chart showing HENRY ARTHUR JOHN SILLEYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Unthank Douglas George 3
#2 Unthank Douglas G 3
#3 Leslie Bristow 2
#4 Unthank George Rodham 1
#5 George Unthank Douglas 1
#6 Bristow Leslie 1
#7 Rodham Unthank George 1
#8 Silley Henry Arthur John 1
#9 Unthank George R 1

Latest patents

Publication Filing date Title
GB978122A Improvements in and relating to apparatus for separating liquids of different specific gravities from mixtures thereof
US2931409A Collapsible tanks
GB856750A Improvements in and relating to collapsible tanks
GB832409A Improvements in and relating to collapsible tanks
GB877971A Improvements in and relating to apparatus for separating liquids of different specific gravities
US2874850A Apparatus for separating oil and water
GB824244A Improvements in and relating to apparatus for separating liquids by gravity
GB766908A Improvements in and relating to apparatus for separating oil and water
US2777581A Apparatus for separating oil and water
GB727186A Improvements in apparatus for separating oil and water
GB735130A Improvements in and relating to apparatus for separating oil and water
GB721212A Improvements in and relating to apparatus for separating water, oil, sludges, waxes and the like
GB675241A Improvements in and relating to apparatus for separating immiscible liquids or liquids and insoluble solids
GB647672A Improvements in suction nozzles