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STEPHENS DAVID H

Overview
  • Total Patents
    22
  • GoodIP Patent Rank
    220,197
About

STEPHENS DAVID H has a total of 22 patent applications. Its first patent ever was published in 1993. It filed its patents most often in United Kingdom. Its main competitors in its focus markets environmental technology, thermal processes and civil engineering are BAM DEUTSCHLAND AG, STEPHENS DAVID HUW and DUMBECK ROBERT F.

Patent filings in countries

World map showing STEPHENS DAVID Hs patent filings in countries
# Country Total Patents
#1 United Kingdom 22

Patent filings per year

Chart showing STEPHENS DAVID Hs patent filings per year from 1900 to 2020

Latest patents

Publication Filing date Title
GB201609659D0 Dampness and energy efficiency in housing
GB201502767D0 Energy reduction in buildings and transport
GB0711356D0 Progressive reduction of energy consumption to low carbon old and new buildings
GB0626037D0 Low carbon house with greenhouse roof
GB0611726D0 Progressive reduction of energy consumption in old and new buildings
GB0306245D0 Modular ventilating ambient heat recovery pump
GB0226684D0 Heating and ventilation of buildings
GB0106678D0 Improvements to surface water drainage
GB0104636D0 Reduction of carbon dioxide emissions caused by buildings
GB0018107D0 Construction process for low energy buildings
GB9825060D0 Surface water drainage
GB9818864D0 Heating and ventilation of dwellings
GB9812383D0 Flue gas desulphurisation
GB9811253D0 Construction system for low energy dwellings
GB9726737D0 Energy saving in buildings
GB9621043D0 Dehumidifier unit
GB9621044D0 Energy saving in buildings
GB9521590D0 Insulating and solar-collecting window shutters
GB9520318D0 Dehumidifier unit
GB9512723D0 Improvements in heat pumps