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HARDWICK HINDLE INC

Overview
  • Total Patents
    22
About

HARDWICK HINDLE INC has a total of 22 patent applications. Its first patent ever was published in 1929. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy and machines are ARAGONESA COMP, RALEC ELECTRONIC CORP and DU BOIS ROBERT E.

Patent filings in countries

World map showing HARDWICK HINDLE INCs patent filings in countries
# Country Total Patents
#1 United States 22

Patent filings per year

Chart showing HARDWICK HINDLE INCs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Hastings Donald F 6
#2 Crouse George B 4
#3 Francis Hastings Donald 3
#4 Holleran Dominic J 2
#5 Mcdonell Frank W 2
#6 Magnus Bjorndal 2
#7 Winkler Robert H 1
#8 Sumrell Ferrall N 1
#9 Osgood Victor L 1
#10 Winckler Robert H 1

Latest patents

Publication Filing date Title
US2677742A Rheostat and contact arm therefor
US2691087A Rheostat
US2473247A Electrical rheostat device
US2446417A Rheostat
US2550314A Interconnecting means for control devices
US2473246A Adjustable resistor of the tubular type
US2233450A Resistance unit
US2193964A Electric motor controller
US2142356A Resistor unit
US2142355A Combination plug-in resistor and switch
US2196463A Rheostat winding machine
US2066835A Rheostat
US2021487A Rheostat
US2021486A Resistance unit
US2021509A Resistance device and unit therefor
US1931981A Resistor
US1919061A Contact device for resistors
US1880239A Resistor
US1830092A Resistor
US1955906A Rheostat