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FRIEDRICH MERK

Overview
  • Total Patents
    13
About

FRIEDRICH MERK has a total of 13 patent applications. Its first patent ever was published in 1925. It filed its patents most often in United States. Its main competitors in its focus markets telecommunications and electrical machinery and energy are KARL HERSEN, GERALD DEAKIN and MERK FRIEDR.

Patent filings in countries

World map showing FRIEDRICH MERKs patent filings in countries
# Country Total Patents
#1 United States 13

Patent filings per year

Chart showing FRIEDRICH MERKs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Friedrich Merk 13

Latest patents

Publication Filing date Title
US1895265A Multiple brush selector with mechanical brush selection
US1938752A Flat bank multiple for selectors in telephone exchanges
US1929507A Selector arrangement
US1849986A Automatic telephone switch
US1789489A Selector for automatic telephone exchanges
US1799175A Automatic telephone system
US1759267A Automatic telephone system
US1784698A Telephone system
US1714611A Interchangeable set of relays for telephone purposes
US1712393A Selector