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ASPDEN HAROLD

Overview
  • Total Patents
    44
About

ASPDEN HAROLD has a total of 44 patent applications. Its first patent ever was published in 1985. It filed its patents most often in United Kingdom and United States. Its main competitors in its focus markets engines, pumps and turbines, electrical machinery and energy and environmental technology are SEKIYA TETSUO, CRULL SIEGFRIED and VEM ELEKTROANTRIEBE GMBH.

Patent filings in countries

World map showing ASPDEN HAROLDs patent filings in countries
# Country Total Patents
#1 United Kingdom 41
#2 United States 3

Patent filings per year

Chart showing ASPDEN HAROLDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Aspden Harold 23
#2 Mumford Francis James 1
#3 Holihan Leonard Francis 1
#4 Adams Robert George 1
#5 Briscoe Josiah Alfred 1

Latest patents

Publication Filing date Title
GB0523690D0 Electric power generating apparatus
GB0205577D0 Electrical power generating apparatus
GB9513855D0 Magnetic reluctance motor
GB9513893D0 Magnetic reluctance motors
GB9417647D0 Thermoelectric heat transfer apparatus
GB9413487D0 Electrical power transformer system
GB9404066D0 Magnetic reluctance motors
GB9323776D0 Vacuum spin power generation
GB9322622D0 Electrolysis apparatus
GB9321036D0 Refrigeration and electrical power generation
GB9320215D0 Electrical motor-generator
GB9316110D0 Thermodynamic radiation energy transfer panels
GB9314939D0 Vacuum spin power generation
GB9311071D0 Magnetic reactor oscillator
GB9310734D0 Hydrogen activated heat generation apparatus
GB9306690D0 Instrument for measuring velocity and direction.
GB9302355D0 Thermoelectric energy conversion
GB9301991D0 Optical instrument for navigation and scientific teaching
GB9218905D0 Thermoelectric regeneration apparatus
GB9212818D0 Thermoelectric heat transfer apparatus