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C D PATENTS LTD

Overview
  • Total Patents
    140
About

C D PATENTS LTD has a total of 140 patent applications. Its first patent ever was published in 1943. It filed its patents most often in United Kingdom, France and United States. Its main competitors in its focus markets materials and metallurgy, basic materials chemistry and macromolecular chemistry and polymers are BENGBU NANZI INSTR CO LTD, SIKA LTD and ESK CERAMICS GMBH & CO KG.

Patent filings in countries

World map showing C D PATENTS LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 57
#2 France 25
#3 United States 23
#4 Germany 17
#5 Canada 16
#6 Spain 1
#7 Finland 1

Patent filings per year

Chart showing C D PATENTS LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Greaves Charles Desmond 19
#2 Desmond Greaves Charles 10
#3 Norman William Stephens 9
#4 Williams Alan Fowler 7
#5 Bennett John Godolphin 6
#6 Parker William Duncan 6
#7 Sawyer Charles Henry Victor 6
#8 Foster David Blythe 6
#9 Pirani Marcello 5
#10 Kaufman Morris 5

Latest patents

Publication Filing date Title
GB1028875A Improvements relating to water heaters
GB911094A Improvements in or relating to trepanning
GB879663A Improvements relating to fluid pressure overload relief devices
GB878092A Improvements relating to devices for releasing fluid pressure
DE965670C Self-lubricating carbon bearings
GB724283A Heat exchange apparatus
GB714946A Improvements in or relating to bearings
GB704356A Heating or cooling container for corrosive or solvent liquids
GB723867A Heat exchanger
GB692732A Conversion of carbonaceous matter into useful gas
US2665123A Apparatus for treating gases with liquids
DE824389C Process for the production of moldings from pitch or tar
DE903330C Process for the manufacture of shaped articles consisting essentially of carbon, such as carbon electrodes
DE818356C Process for processing bituminous materials, in particular tars and pitches
GB682967A Thermoplastic synthetic resins
GB689315A Improvements in or relating to carbon bodies
GB679131A Improvements in or relating to the treatment of gases and liquids
GB685844A Thermoplastic synthetic resins
DE854470C Process for the production of objects from coal
US2661197A Apparatus for treating gases with liquids