Learn more

HUMPHREY HERBERT ALFRED

Overview
  • Total Patents
    98
About

HUMPHREY HERBERT ALFRED has a total of 98 patent applications. Its first patent ever was published in 1895. It filed its patents most often in United Kingdom, Switzerland and Spain. Its main competitors in its focus markets engines, pumps and turbines, machines and mechanical elements are HUMPHREY GAS PUMP COMPANY, JENDRASSIK GEORGE and JENDRASSIK DEVELOPMENTS LTD.

Patent filings in countries

World map showing HUMPHREY HERBERT ALFREDs patent filings in countries

Patent filings per year

Chart showing HUMPHREY HERBERT ALFREDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Humphrey Herbert Alfred 67
#2 Rusdell William Joseph 16
#3 Herbert Alfred Humphrey 15
#4 Cerasoli Alberto 2
#5 Humphrey Herbert-Alfred 1
#6 Cerasoli Albert 1
#7 William Joseph Rusdell 1
#8 North Oliver Danson 1

Latest patents

Publication Filing date Title
CA185901A Valve
GB125421A Improved Means of Obtaining Liquid Jets of Maximum Length.
GB104776A Improvements in Internal Combustion Engines.
GB103357A Improvements in Valves for Liquids or Gases.
GB102842A Improved Method of Ignition in Internal Combustion Pumps, Compressors or Engines, and Apparatus therefor.
GB191517622A Improvements in Valves for Pumps for Liquids.
GB191508890A Improvements in Apparatus for Raising or Forcing Liquids or Elastic Fluids.
GB191319169A Improvements in Methods of and Apparatus for Raising or Forcing Liquids.
GB191223173A Improvements in and relating to Internal Combustion Engines.
GB191215585A Improvements in Methods of and Apparatus for Raising or Forcing Liquids or Compressing Elastic Fluids.
GB191126829A Improvements in Raising or Forcing Liquids and in Apparatus therefor.
CA144504A Gas compression
CA139664A Method of and apparatus for raising liquids
GB191121609A Improvements in Methods of and Apparatus for Raising or Forcing Liquids.
GB191118464A Improvements in Operating Gear for Internal Combustion Pumps and Compressors.
GB191118465A Improvements in Methods of Raising or Forcing Liquids or Compressing Gases and in Apparatus therefor.
US1086326A Method of utilizing an expansive force.
GB191128187A Improvements in Apparatus for Pumping Elastic Fluids.
GB191112055A Improvements in Apparatus for Raising or Forcing Liquids and Compressing Gases.
GB191111527A Improvements in Methods of Raising or Forcing Liquids and in Apparatus therefor.