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DUNCAN IND PARKING CONTROL SYS

Overview
  • Total Patents
    64
About

DUNCAN IND PARKING CONTROL SYS has a total of 64 patent applications. Its first patent ever was published in 1986. It filed its patents most often in WIPO (World Intellectual Property Organization), Australia and United States. Its main competitors in its focus markets control, basic communication technologies and computer technology are JOHNSON FARE BOX CO, UNIVERSAL MATCH CORP and REED IND INC.

Patent filings per year

Chart showing DUNCAN IND PARKING CONTROL SYSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Carmen Ralph H 50
#2 Sutton Joseph H 23
#3 Rodgers James Michael 14
#4 Tuxen Gorm 9
#5 Rodgers J Michael 8
#6 Boehner Michael 5
#7 Hassan Hazem 5
#8 Van Horn John W 5
#9 Diekhoff Robert R 5
#10 Rodgers James M 4

Latest patents

Publication Filing date Title
US5805083A Electronic parking meter operating system
US5841369A Parking meter with peripheral functions
US5806651A Coin discrimination system
US5526662A Cashless key and receptacle system
US5382780A Portable time metering device
ZA9306660B Resonant coil coin detection apparatus
WO9506300A1 Resonant coil coin detection apparatus
US5273151A Resonant coil coin detection apparatus
US5244070A Dual coil coin sensing apparatus
US5184707A Coin operated timing mechanism
US5155614A Low-power demodulating receiver with amplifier stages sharing the same bias current
AU7559191A Sensor for measuring the magnetically responsive characteristics of tokens
AU7673891A Chute for controlling the motion of a token moving by gravity through a token-receiving device
WO9115002A1 Low-power device for sorting tokens
AU7483591A Ultra-low-power amplifier for a communications receiver with limited access to power
EP0484457A1 Coin operated timing mechanism
US4880406A Meter handle mechanism