Learn more

H H ROBERTSON HOLDINGS LTD

Overview
  • Total Patents
    17
About

H H ROBERTSON HOLDINGS LTD has a total of 17 patent applications. Its first patent ever was published in 1959. It filed its patents most often in United Kingdom, France and Denmark. Its main competitors in its focus markets civil engineering, materials and metallurgy and environmental technology are BINOT LUCIEN, HERBERT ENDER and JONES CECIL D.

Patent filings in countries

World map showing H H ROBERTSON HOLDINGS LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 14
#2 France 2
#3 Denmark 1

Patent filings per year

Chart showing H H ROBERTSON HOLDINGS LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Payne Harold James William 8
#2 Norsworthy George Rowland 2
#3 Vaughan Colin 2
#4 Allen Alexander 1
#5 Allan Alexander 1
#6 Forgham Wilfred John Witter 1
#7 Whalley Charles Albert 1
#8 Andrews John Stanley 1

Latest patents

Publication Filing date Title
GB999017A Improvements in or relating to cross-ventilated axial flow fans
GB1009142A New or improved joint for building sheets
GB993542A Improved building sheet
GB990491A Improvements in or relating to flooring units or slabs
GB985148A Improvements in or relating to corner supports for modular floors
GB984606A Improvements in or relating to corner supports or stools for modular floors
GB965806A Wall construction
GB941437A Wall construction
GB903451A Improvements in or relating to the ventilating of buildings for oxygen steel-making process equipment
GB941056A Heavy duty electrically insulated flooring
GB934224A Improvements in or relating to floor construction
GB924187A Improvements in or relating to roof or deck lights for buildings
GB904529A Improvements in or relating to blind fasteners
GB903039A Improvements in or relating to demountable partitions