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HEENAN HAMMERSLEY

Overview
  • Total Patents
    26
About

HEENAN HAMMERSLEY has a total of 26 patent applications. Its first patent ever was published in 1895. It filed its patents most often in United Kingdom, Austria and United States. Its main competitors in its focus markets thermal processes, semiconductors and machine tools are ALFORD SAFETY SERVICES INC, AUTOMATIC WELDING COMPANY and TAYLOR WINFIELD CORP.

Patent filings in countries

World map showing HEENAN HAMMERSLEYs patent filings in countries
# Country Total Patents
#1 United Kingdom 20
#2 Austria 2
#3 United States 2
#4 Canada 1
#5 Denmark 1

Patent filings per year

Chart showing HEENAN HAMMERSLEYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Heenan Hammersley 26
#2 Leask Henry Norman 3
#3 Bardill William 1
#4 Gilbert William 1

Latest patents

Publication Filing date Title
GB191500840A Improvements in the Manufacture of Bent Steel Axles for Army Travelling Field Kitchens and other such Vehicles.
CA144178A Apparatus for cooling or warming water, air, etc.
US1018243A Apparatus for cooling or warming water, air, or gas.
US1018242A Method of building cooling or warming drums.
GB191111183A Improvements in and in the Manufacture of Apparatus for Cooling or Warming Water, or Air, and the like.
GB190906452A Improvements in Apparatus for Cooling Water or Air or for Treating Gases with Liquids.
GB190626130A Improvements in and relating to Centrifugal Fans.
GB190624635A Improvements in Submarine Boats and Appliances or Apparatus for Indicating the Locality when Submerged and Raising same to the Surface, applicable also to other Vessels.
GB190402127A Improvements in Portable Drilling Machines.
GB190323616A Improvements in Apparatus for the Manufacture of Crude Gas from Coal or other Material.
GB190317387A Improvements in Destructors or Furnaces for Burning Refuse or other Materials.
GB190222509A Improvements in Destructors or Furnaces for Burning Refuse or other Materials.
GB190205155A Improvements in Apparatus or Furnaces for Burning Refuse Matter and other Materials.
GB190205156A Improvements in Destructors or Furnaces for Burning Refuse or other Materials.
GB190107716A Improvements in Covers or Fittings for Stopping Holes in Boilers Tanks or other Vessels Subjected to Internal Pressure.
GB190107041A Improvements in Apparatus or Furnaces for Burning Refuse Matter or other Material
GB190009065A Improvements in the Heating of the Air Supplied under Pressure to Destructor and other Furnaces.
GB189924679A Improvements in Shaker Screens.
GB189924318A Improvements in Apparatus or Furnaces for Burning Refuse Matter or other Material.
GB189909085A Improvements relating to the Ventilation of Cotton Mills and other Buildings.