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JOHANN STUMPF

Overview
  • Total Patents
    61
About

JOHANN STUMPF has a total of 61 patent applications. Its first patent ever was published in 1903. It filed its patents most often in France, Germany and United States. Its main competitors in its focus markets engines, pumps and turbines, thermal processes and machines are HOLLEYMAN JOHN E, LIEBRA MOTORENGESELLSCHAFT M B and STUMPF JOHANN.

Patent filings in countries

World map showing JOHANN STUMPFs patent filings in countries
# Country Total Patents
#1 France 34
#2 Germany 12
#3 United States 8
#4 United Kingdom 7

Patent filings per year

Chart showing JOHANN STUMPFs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Stumpf Johann 34
#2 Johann Stumpf 8

Latest patents

Publication Filing date Title
GB315484A Improvements relating to injectors or ejectors
GB264889A Improvements in the crank disposition of compound steam engines of the woolf type
GB264887A Improvements relating to the steam distribution for compound engines of the woolf type
GB264888A Improvements relating to compound steam engines without an intermediate receiver
US1616239A Method and means for delivering preheated feed water
US1699998A Method and means for heating and purifying feed water for locomotive boilers and thelike
US1644756A Connecting rod
US1668927A Noncondensing steam engine
GB146817A Improvements in triple cylinder locomotives
GB146522A Improvements in connection with the heating and purifying of feed-water for locomotive boilers
US1568197A Locomotive with combined drive
US1411226A Utilizing the energy of the exhaust of engines
US1533146A Locomotive with three cylinders
DE336980C Inlet control for two-stroke engines