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T & H SMITH LTD

Overview
  • Total Patents
    21
About

T & H SMITH LTD has a total of 21 patent applications. Its first patent ever was published in 1951. It filed its patents most often in United Kingdom, Belgium and France. Its main competitors in its focus markets organic fine chemistry, foods and drinks and basic materials chemistry are GEIGY CHEM CORP, CHUO YUKA and METALSALTS CORP.

Patent filings in countries

World map showing T & H SMITH LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 10
#2 Belgium 3
#3 France 3
#4 United States 3
#5 Germany 1
#6 Denmark 1

Patent filings per year

Chart showing T & H SMITH LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Haining Colin Grant 4
#2 Johnston Robert Goodman 3
#3 Spring Frank Stuart 3
#4 Newbold Geoffrey Tattersall 2
#5 Samuel William Young 2
#6 Goodman Johnston Robert 1
#7 Smith John Munro 1
#8 Farquharson Muriel Elizabeth 1
#9 Spencer Kenneth Eric Vincent 1
#10 Barnes William 1

Latest patents

Publication Filing date Title
US3080327A Quaternary salts as denaturants for organic substances
GB866605A Denaturing of potable alcoholic liquids
GB919312A í~-deoxycodeine compounds and their preparation
US3080326A Denatured alcohol
GB886183A Quaternary salts of tropine compounds
GB919311A Derivatives of 14-hydroxycodeine and their preparation
GB919313A 14-acyloxycodeinones and their preparation
GB866604A New quaternary salts
US2903394A Quaternary halides of certain tropane alkaloids
GB811132A New quaternary salts
GB812705A Quaternary tropanol-3 derivatives
GB798648A New quaternary salts, processes for their preparation and solutions thereof
GB703929A Improvements in the production of tetrahydrofuran compounds