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WATFORD ENGINEERING WORKS LTD

Overview
  • Total Patents
    34
About

WATFORD ENGINEERING WORKS LTD has a total of 34 patent applications. Its first patent ever was published in 1913. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets textiles and paper, mechanical elements and chemical engineering are P J WOLFF & SOEHNE G M B H, ASPLUND ARNE and NOSS AB.

Patent filings in countries

World map showing WATFORD ENGINEERING WORKS LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 21
#2 United States 5
#3 Canada 3
#4 Germany 2
#5 France 2
#6 Switzerland 1

Patent filings per year

Chart showing WATFORD ENGINEERING WORKS LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 John Paramor 5
#2 Paramor John 3
#3 Works Ltd The Watford Engineer 1
#4 Pluthero Cecil Philip 1
#5 Harry Suckling 1
#6 Bray Ernest Edward 1

Latest patents

Publication Filing date Title
GB677634A Improvements in or relating to apparatus for pulping vegetable fibrous material
GB659294A Improvements in or relating to apparatus for screening materials
GB569018A Improvements in or relating to paper-pulp and like roller straining machines
GB559892A Improvements in or relating to the aeration of liquid containing fibres or other floatable matter
GB521519A Improvements in or relating to spraying apparatus
GB512981A Improvements in or relating to strainer plates
GB490560A Improvements in or relating to apparatus for drying felts, bands and other webs
GB485791A Improvements in or relating to methods and apparatus for the recovery of fibres and other floatable material from liquids
GB464158A Improvements in or relating to paper-pulp and like straining machines
US1997651A Washing device comprising shower pipes
GB420196A Improvements in or relating to washing devices comprising shower or washing pipes for washing strainers, felts and the like in papermills and other industries
GB379375A Improvements in or relating to sprayers for froth killing, washing and like purposes
GB313108A Improvements in or applicable to paper-pulp strainers, paper-and rag-dusters and similar machines
GB282951A Improved means applicable for use in the manufacture and conservation of ice, ice-cream and the like
GB265781A Improvements in spray damping apparatus
GB245825A Improvements in or applicable to machines for straining and otherwise treating paper-pulp and the like
GB217075A Improvements in machines for straining paper-pulp
US1509024A Machine for straining paper pulp and the like
GB203927A Improvements in or applicable to machines for straining paper-pulp and the like
US1497156A Paper-pulp-straining machine, paper and rag duster, and the like