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CLARKE CHAPMAN JOHN THOMPSON L

Overview
  • Total Patents
    32
About

CLARKE CHAPMAN JOHN THOMPSON L has a total of 32 patent applications. Its first patent ever was published in 1966. It filed its patents most often in United Kingdom, Germany and United States. Its main competitors in its focus markets thermal processes, machine tools and mechanical elements are CLARKE CHAPMAN LTD, JIANGSU SINMA MACHINERY CO LTD and YORKSHIRE IMPERIAL METALS LTD.

Patent filings in countries

World map showing CLARKE CHAPMAN JOHN THOMPSON Ls patent filings in countries
# Country Total Patents
#1 United Kingdom 21
#2 Germany 5
#3 United States 2
#4 Belgium 1
#5 Spain 1
#6 France 1
#7 India 1

Patent filings per year

Chart showing CLARKE CHAPMAN JOHN THOMPSON Ls patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Henderson Leslie 3
#2 Hryniszak Waldemar 2
#3 Hasson Leslie 2
#4 Bennett John Charles 2
#5 Howlett Francis Charles 2
#6 Graham Robert Porteous 1
#7 Dickson John Robinson 1
#8 Brown John Russell 1
#9 Makosinski Stanislaw 1
#10 Leigh David Geoffrey 1

Latest patents

Publication Filing date Title
GB1361435A Friction welding annular parts
GB1333980A Boiler
GB1342994A Equalising flow in pipes
GB1337476A Method of and apparatus for coiling tubing
GB1342367A Coke oven machines
US3770136A Overhead cranes
GB1338401A Boilers
GB1331304A Liquid treatment ion exchange equipment
GB1331305A Components for liquid treatment ion eexchange equipment
GB1328015A Methods of and apparatus for flash removal
GB1332308A Apparatus for stripping moulds from ingots
GB1314688A Regulating apparatus for water treatment plant
GB1333251A Method and apparatus for the production of methane
GB1326040A Production of metal tubing
GB1324431A Methods of and apparatus for friction welding
GB1299597A Improvements in winches
GB1315961A Coiled metal tubing
GB1301098A Improvements in or relating to the spacing of tubes
GB1261906A Cyclonic fluid separators
GB1271492A Improvements in or relating to air heaters