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NORTHWESTERN CORP

Overview
  • Total Patents
    20
About

NORTHWESTERN CORP has a total of 20 patent applications. Its first patent ever was published in 1921. It filed its patents most often in United States and Canada. Its main competitors in its focus markets control, measurement and machines are BLEICH CHARLES R, DRAGON KK and DRAGON CO LTD.

Patent filings in countries

World map showing NORTHWESTERN CORPs patent filings in countries
# Country Total Patents
#1 United States 19
#2 Canada 1

Patent filings per year

Chart showing NORTHWESTERN CORPs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Bolen Richard K 9
#2 Bolen Emerson A 4
#3 Bolen W 2
#4 Adams Charles J 1
#5 Jones Alva R 1
#6 Sereno Robert H 1
#7 Balaz Charles S 1
#8 Householder R 1
#9 Schlenker Jr Jacob 1
#10 Bolen Jr Waldo E 1

Latest patents

Publication Filing date Title
US2011253501A1 Coin mechanism for a bulk vending machine
US6857710B2 Secure merchandise-vending machine
US6182859B1 Brush housing for bulk vending machine
US6079540A Coin mechanism for bulk vending machine
US5509521A Coin mechanism for vending machine for handling magnetic coins
US5339937A Coin mechanism for bulk vending machine
US5190133A Bulk vending machine apparatus
US3822004A Bulk vending machine with sound playback apparatus
US3804294A Bulk merchandise vending machine with removable cash box and single lock
US3783986A Vending machine with counting mechanism
US3390753A Vending machine assembly including a stand with a coin box therein
US2990975A Vending machine
US2876928A Selective merchandise vending machine with replaceable magazine
US2696324A Selective merchandise vending machine
US2627362A Vending machine
US1970686A Measuring device for vending machines
US1933840A Stamp vending machine
US1922925A Coin detector
US1419353A Stamp-vending machine
CA869311A Merchandise vending machine with combination rotary coin mechanism and slug rejector