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HERBERT FRANK PERCY PURDAY

Overview
  • Total Patents
    12
About

HERBERT FRANK PERCY PURDAY has a total of 12 patent applications. Its first patent ever was published in 1932. It filed its patents most often in United Kingdom. Its main competitors in its focus markets engines, pumps and turbines and mechanical elements are BRYANT CLYDE C, HOMER A BRUNELL and KEMP JAMES REGINALD.

Patent filings in countries

World map showing HERBERT FRANK PERCY PURDAYs patent filings in countries
# Country Total Patents
#1 United Kingdom 12

Patent filings per year

Chart showing HERBERT FRANK PERCY PURDAYs patent filings per year from 1900 to 2020

Latest patents

Publication Filing date Title
GB720990A Improvements in internal combustion engines having the cylinders arranged in vee or fan formation
GB532571A Improvements relating to the inlet valves of internal combustion engines
GB532572A Improvements relating to gaseous fuel admission means for internal combustion engines
GB531366A Improvements relating to the combustion chambers and fuel supply thereto in two-stroke compression ignition oil engines
GB527873A Improvements in two-stroke cycle internal combustion engines using liquid and gaseous fuel alternatively or simultaneously
GB579120A Means for reducing the axial vibration of the crankshaft of a reciprocating internal combustion marine engine power plant
GB507710A Improvements in the scavenging of two-stroke cycle internal combustion engines
GB482044A Improvements relating to valve gear of internal combustion engines
GB481474A Improvements relating to valve gear of internal combustion engines
GB433512A Improvements relating to the mounting of reciprocating machines upon foundations
GB400552A Improvements relating to camshaft or other auxiliary shaft casings for internal combustion engines
GB382903A Improvements in two-stroke internal combustion engines