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FREDERICK MCMAHON WILLIAM

Overview
  • Total Patents
    23
About

FREDERICK MCMAHON WILLIAM has a total of 23 patent applications. Its first patent ever was published in 1921. It filed its patents most often in United States. Its main competitors in its focus markets engines, pumps and turbines, civil engineering and machines are KHOMYNETS ZINOVIY DMITRIEVICH, KHOMINETS ZINOVIJ DMITRIEVICH and THERMOFLUIDICS LTD.

Patent filings in countries

World map showing FREDERICK MCMAHON WILLIAMs patent filings in countries
# Country Total Patents
#1 United States 23

Patent filings per year

Chart showing FREDERICK MCMAHON WILLIAMs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Frederick Mcmahon William 23

Latest patents

Publication Filing date Title
US2915987A Oil well sand pumps
US2858890A Method for secondary oil recovery
US2420437A Disk harrow
US2335156A Wheelless four-tools-in-one disk implement
US2352963A Disk harrow
US2291911A Apparatus for raising oil and gas from oil wells
US2114905A Venturi-tube oil well pump
US2080624A Oil well pump
US2080623A Oil well pump
US2080622A Apparatus for entraining oil and gas from oil wells
US1992436A Oil well pump
US1789318A Pump piston
US1740931A Pump piston
US1905181A Pump piston
US1801520A Oil-well pump
US1675417A Grinding-mill screen
US1642122A Division-head propelling screen
US1650877A Pump piston
US1744565A Pump-piston packing-adjusting mechanism
US1642121A Oil-well pump