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ROCK OLA MFG CORP

Overview
  • Total Patents
    193
About

ROCK OLA MFG CORP has a total of 193 patent applications. Its first patent ever was published in 1934. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets control, audio-visual technology and furniture and games are STERN ELECTRONICS INC, M II SHII KK and VARGA ZDENEK.

Patent filings per year

Chart showing ROCK OLA MFG CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Rockola David C 56
#2 Rockola Donald C 31
#3 Bookout Floyd V 13
#4 Haque Shuja 12
#5 Hutter William H 8
#6 Triman Eugene L 6
#7 Murphy Francis T 5
#8 Williams Harry E 5
#9 Dettle Lawrence E 5
#10 Totten John A 4

Latest patents

Publication Filing date Title
US5077923A Program display for coin operated compact disc phonograph
US5080256A Slant shelf magazine for automatic vending machines
US4997106A Storage magazine and feed system for vending cylindrical articles
US5031164A Compact disc holding mechanism for automatic coin operated phonogram
US4886325A Display assembly for automatic can vending machine
US4913313A Dual serpentine track magazine for coin operated can vendors
US4347952A Serpentine magazine for can venders
US4354614A Can and bottle vending
US4306644A Coin chute for vending machine
ES8101287A1 Popularity meter of selection for phonograph (Machine-translation by Google Translate, not legally binding)
US3909679A Cabinet and heat sink for amplifier components
US3883038A Can and bottle vendor
US3848718A Vending machine control circuit
US3874203A Lever-type door lock
US3839703A Electronic selector system for automatic photographs
US3789363A Selector system for automatic phonographs
US3776418A Selection system for vending machine
US3798811A Program for automatic phonograph
US3628643A Selector mechanism for coin-controlled article dispensers
US3613945A Can-vending and feed mechanism