Learn more

PAUL EHRMANN

Overview
  • Total Patents
    19
About

PAUL EHRMANN has a total of 19 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United Kingdom, Germany and United States. Its main competitors in its focus markets electrical machinery and energy and engines, pumps and turbines are HUTCHINS ELECTRIC COMPANY INC, YANG TONGLONG and UNION ELEK CITAETS GES.

Patent filings in countries

World map showing PAUL EHRMANNs patent filings in countries
# Country Total Patents
#1 United Kingdom 8
#2 Germany 5
#3 United States 4
#4 France 2

Patent filings per year

Chart showing PAUL EHRMANNs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Paul Ehrmann 4
#2 Ehrmann Paul 2
#3 Fournier Jean-Yves-Marie 1

Latest patents

Publication Filing date Title
GB413835A Improvements in and relating to the cooling of dynamo electric machines
US2043655A Cooling of electric machines
GB387622A Improvements relating to electric machines with laminated masses
GB387961A Improved method of and means for ventilating the stators of dynamo-electric machines
US1959527A Electric machine with laminated masses
GB214944A Improvements relating to cooling enclosed dynamo-electric generators and motors
GB218683A Improvements relating to dynamo-electric generators and motors
US1529993A Cooling device for stators of electric machines
US1487221A Device for cooling electric machines
GB142828A Improvements in devices for cooling electric machines
GB162281A An improved method of manufacture of laminated magnetic masses provided with cooling vanes, for electric machines