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ALFRED HUBERT ROY FEDDEN

Overview
  • Total Patents
    45
About

ALFRED HUBERT ROY FEDDEN has a total of 45 patent applications. Its first patent ever was published in 1918. It filed its patents most often in United Kingdom and France. Its main competitors in its focus markets engines, pumps and turbines, mechanical elements and transport are DAVEY PAXMAN & COMPANY LIMITED, MIRRLEES NATIONAL LIMITED and JEAN ROMEYN.

Patent filings in countries

World map showing ALFRED HUBERT ROY FEDDENs patent filings in countries
# Country Total Patents
#1 United Kingdom 42
#2 France 3

Patent filings per year

Chart showing ALFRED HUBERT ROY FEDDENs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Fedden Alfred Hubert Roy 3
#2 Butler Leonard Frederick George 1

Latest patents

Publication Filing date Title
GB585199A Improvements relating to reciprocating pumps for injection of fuel into engine cylinders and for similar purposes
GB584525A Improvements relating to the construction of sleeves for engine cylinders
GB575850A Balancing devices for radial cylinder engines
GB575968A Improvements in sleeve balancing arrangements for radial engines
GB570814A Improvements relating to road vehicles
GB458700A Improvements in or relating to throttle controls for internal combustion engines
GB403380A Improvements in or relating to means for controlling the fuel and air for supercharged internal-combustion engines
GB364065A Improvements in or relating to cylinder heads for internal combustion engines
GB351087A Improvements in or relating to connecting-rods for internalcombustion engines
GB332642A Improvements in or relating to the propulsion of aircraft
GB320879A Improvements in or relating to internal-combustion engines of the fixed radial cylinder type
GB320878A Improvements in or relating to internal-combustion engines of the fixed radial cylinder type
GB306587A Improvements in or relating to controlling-means for internal-combustion engines
GB298274A Improvements in or relating to gearing for driving a rotary compressor on an internal-combustion engine
GB293408A Improvements in or relating to the lubrication of internal-combustion engines
GB293407A Improvements in or relating to air compressors for use with internal-combustion engines
GB293409A Improvements in or relating to valve-gear for internal-combustion engines
GB293713A Improvements in or relating to gearing for driving a rotary compressor on an internal-combustion engine
GB291152A Improvements in or relating to controlling means for internal-combustion engines
GB267597A Improvements in or relating to valves and valve-gear for internal-combustion engines