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WULFF APPARATEBAU

Overview
  • Total Patents
    70
About

WULFF APPARATEBAU has a total of 70 patent applications. Its first patent ever was published in 1955. It filed its patents most often in Germany, Netherlands and Spain. Its main competitors in its focus markets control, electrical machinery and energy and audio-visual technology are MAR MATIC SALES LTD, ATRONIC CASINO TECHNOLOGY DIST and SINTERED METALS INC.

Patent filings in countries

World map showing WULFF APPARATEBAUs patent filings in countries

Patent filings per year

Chart showing WULFF APPARATEBAUs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bohlmann Walter 19
#2 Schoene Siegfried 10
#3 Ramlow Joachim 7
#4 Wulff Guenter 6
#5 Fiedler Alexander 5
#6 Albrecht Lutz Bernhard 3
#7 Kloss Hans 2
#8 Ramlow J 2
#9 Lungwitz Guenter 2
#10 Reiber Heinz-Joachim 2

Latest patents

Publication Filing date Title
DE3103371A1 Method for fixing the limit values for identifying coins which are good or bad
DE3027385A1 Mains plug connector with locking mechanism - requiring key operation before plug can be fully inserted into socket
DE3020226A1 Coin operated gaming machine control system - uses group of sensors coupled to A=D converter and providing monitoring facility
DE3009991A1 Coin operated machine with delivery selector - uses melody generator to control selector sequence with reduced noise effect
DE2952009A1 TEST CIRCUIT FOR OPTICAL INDICATORS
DE2952002A1 A WINNING POINTS PLAYER
DE2950568A1 Interlock for coin operated contacts and electromagnets - has resistance-capacitor timed stage to avoid damage to jammed coils
DE2908609A1 Coin operated electronic game of chance - has circular segment field with symbol sequences controlled by microprocessor
DE2902043A1 Coin operated amusement machine - has back-up battery for data store with battery voltage monitored to switch machine to inoperative
DE2856585A1 METHOD FOR OPERATING A COIN PLAYER WITH A CREDIT WORK AND DEVICE FOR IMPLEMENTING THE METHOD
DE2833865A1 Locking hook for two-hinged sections - is guided by cylinder rotation to move from release to intermediate position overlapping pin which secures locking position
DE2828796A1 Operation of fruit machine - enabling certain symbol combination to release series of games in which higher winnings are possible
DE2828797A1 Gaming machines with rotating elements - has element driven by synchronous motor whose speed is controlled by supply frequency changed gradually during starting and stopping
DE2822551A1 Coin operated gaming machine with winning chances - has pushbutton whose speed of operation determines speed or running time of rotatable elements
DE2806946A1 Slot machine with microprocessor checking authenticity - has sensors affecting frequency, phase, voltage or current and has compensators
DE2650186A1 Coin operated gambling machine - has credit and win indicating wheels of compact modular design mounted on baseplate
DE2646706A1 Electric coin operated gaming machine - has credit mechanism with tens and units counting wheels and contact arm rotating over segments determining wins
DE2641970A1 Coin operated gaming machine - has counter, operated by electromagnets shunted by NTC resistor in series with diode to accumulate value of inserted coins
DE2612700A1 Coin operated gaming machine with win symbols - has rotary drum with brake device operated by sets of contacts with cam drive members and manual start button
DE2612269A1 Electromechanical display for coin operated entertainment machines - has several panels for coin counting and game assessment with LED indicating elements