Learn more

GRAHL GUSTAV DE

Overview
  • Total Patents
    34
About

GRAHL GUSTAV DE has a total of 34 patent applications. Its first patent ever was published in 1907. It filed its patents most often in United States, United Kingdom and Austria. Its main competitors in its focus markets thermal processes and machines are MARCOTTY FRANZ, FRANZ MARCOTTY and LANGER FUEL SAVING CORP OF AME.

Patent filings in countries

World map showing GRAHL GUSTAV DEs patent filings in countries
# Country Total Patents
#1 United States 21
#2 United Kingdom 10
#3 Austria 2
#4 Denmark 1

Patent filings per year

Chart showing GRAHL GUSTAV DEs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Grahl Gustav De 34

Latest patents

Publication Filing date Title
US1098566A Mechanical stoker for boiler and like furnaces.
US1098565A Mechanical stoker for boiler and like furnaces.
GB191222050A Improvements in Mechanical Stokers for Boiler and like Furnaces.
US1095629A Apparatus for consuming smoke in locomotive-furnaces.
US1067422A Means for adjusting the doors of boiler-furnaces.
US1039273A Apparatus for controlling the admission of steam to the auxiliary blast of boiler-furnaces.
US1079853A Apparatus for automatically regulating the draft in boiler-furnaces.
US1063430A Apparatus for controlling the artificial blast in locomotives.
US1073039A Boiler-furnace.
US1050940A Boiler-furnace.
US1051220A Fire-door of boiler-furnaces.
GB191021476A Device for Preventing the Formation of Smoke in Furnaces Operated with Artificial Draught.
US990254A Door-frame for locomotive-boiler furnaces.
US1061668A Apparatus for controlling the artificial blast in locomotives.
US982591A Steam-nozzle for steam-fan furnaces.
GB191013919A Improved Apparatus for Controlling the Artificial Draft in Locomotives.
US980773A Fire-door for boiler-furnaces.
US971266A Furnace-door.
US975763A Boiler-furnace.
GB190914430A Apparatus for Automatically Regulating Furnace-draught.