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HEYER BENJAMIN F W

Overview
  • Total Patents
    15
About

HEYER BENJAMIN F W has a total of 15 patent applications. Its first patent ever was published in 1922. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy, measurement and environmental technology are HANGZHOU GAOTE ELECTRONIC EQUIPMENT CO LTD, 4C TECHNOLOGIES INC and ANHUI RNTEC TECH CO LTD.

Patent filings in countries

World map showing HEYER BENJAMIN F Ws patent filings in countries
# Country Total Patents
#1 United States 15

Patent filings per year

Chart showing HEYER BENJAMIN F Ws patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Heyer Benjamin F W 15
#2 Horton John W 2
#3 Dalzell Clarence W 1

Latest patents

Publication Filing date Title
US2986032A Engine parameter analyzer
US2782357A 6-12 volt battery tester
US2829336A Test prod
US2633237A Battery service kit and container therefor
US2376056A Battery charging thermostat
US2369826A Fast charger
US2267826A Battery tester and method of testing
US2254846A Battery testing apparatus
US2084086A Battery testing apparatus
US1970889A Battery charger
US2050321A Battery terminal connecter
US1970091A Storage battery connecter
US1772217A Apparatus for testing batteries
US1729385A Electric switch
US1520865A Apparatus and meter for testing batteries