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RUDOLF ERREN

Overview
  • Total Patents
    12
About

RUDOLF ERREN has a total of 12 patent applications. Its first patent ever was published in 1929. It filed its patents most often in Germany, United Kingdom and Ireland. Its main competitors in its focus markets engines, pumps and turbines, environmental technology and basic materials chemistry are NEMOTO ISAMU, TK DESIGN AG and OKUMA TAKESHI.

Patent filings in countries

World map showing RUDOLF ERRENs patent filings in countries
# Country Total Patents
#1 Germany 6
#2 United Kingdom 4
#3 Ireland 2

Patent filings per year

Chart showing RUDOLF ERRENs patent filings per year from 1900 to 2020

Latest patents

Publication Filing date Title
DE592469C Two-stroke oxyhydrogen machine
GB364179A Improvements in and relating to internal combustion engines
GB364180A Improvements in and relating to internal combustion engines using a mixture of hydrogen and oxygen as fuel
IE12711L Internal combustion engines
IE11176L Internal combustion engines
GB353570A Improvements in and relating to internal combustion engines
GB344707A Improvements in and relating to internal combustion engines
DE571134C Two-stroke working process for oxyhydrogen engines