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EARLE LITTLEFIELD EDGAR

Overview
  • Total Patents
    14
About

EARLE LITTLEFIELD EDGAR has a total of 14 patent applications. Its first patent ever was published in 1916. It filed its patents most often in United States. Its main competitors in its focus markets machines, mechanical elements and electrical machinery and energy are ROBERTS BRASS MFG COMPANY, PERRY IRA D and PHILLIPS EDWIN.

Patent filings in countries

World map showing EARLE LITTLEFIELD EDGARs patent filings in countries
# Country Total Patents
#1 United States 14

Patent filings per year

Chart showing EARLE LITTLEFIELD EDGARs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Earle Littlefield Edgar 14

Latest patents

Publication Filing date Title
US2496553A Valve mechanism
US2209126A Electrical controlling apparatus and method
US2070607A Valves and their operation
US2088604A Method and apparatus for controlling and utilizing magnetic fields of force
US2129331A Electrical controlling apparatus and method
US1885846A Valve and its operation
US1862937A Valve and its operation
US1893627A Valves and their operation
US1633217A Valve
US1717791A Means for controlling electric currents
US1854475A Method for electrically charging fluids
US1709083A Electric controlling apparatus
US1360654A Apparatus for electrically charging fluids
US1404155A Method of intermittently operating apparatus