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EDGAR YARROW HAROLD

Overview
  • Total Patents
    14
About

EDGAR YARROW HAROLD has a total of 14 patent applications. Its first patent ever was published in 1923. It filed its patents most often in United States. Its main competitors in its focus markets thermal processes, engines, pumps and turbines and machines are COOPER ARTHUR WILLIAM, SPRINGFIELD BOILER COMPANY and STIRLING BOILER CO LTD.

Patent filings in countries

World map showing EDGAR YARROW HAROLDs patent filings in countries
# Country Total Patents
#1 United States 14

Patent filings per year

Chart showing EDGAR YARROW HAROLDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Edgar Yarrow Harold 14
#2 Nigel Gresley Herbert 2

Latest patents

Publication Filing date Title
US1891862A Water tube boiler
US1974352A Preheating of the air supply to locomotive water tube boiler furnaces
US1821868A Distributor for pulverized fuel
US1888153A Water tube boiler
US1878926A Pulverized fuel burner
US1875792A Water tube boiler of the yarrow type
US1795241A Locomotive boiler
US1771944A Superheater for water-tube boilers
US1839074A Water tube boiler
US1789799A Water-tube boiler
US1723905A Superheat control for water-tube boilers
US1657951A Water-tube boiler
US1676126A Economizer for water-tube boilers
US1606555A Generation of steam power