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DREXELBROOK CONTROLS

Overview
  • Total Patents
    98
About

DREXELBROOK CONTROLS has a total of 98 patent applications. Its first patent ever was published in 1968. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets measurement, machines and telecommunications are AGAR CORP LTD, ENDRESS+HAUSER FLOWTEC AG and SIERRA INSTR.

Patent filings per year

Chart showing DREXELBROOK CONTROLSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Maltby Frederick L 57
#2 Kramer L Jonathan 33
#3 Petersen Steven R 14
#4 Kramer Jonathan L 9
#5 Loewenstern Kenneth M 9
#6 Furederitsuku Eru Marutobii 8
#7 Hall Richard G 7
#8 Hoopes Howard S 6
#9 Nardelli Norman 5
#10 Sun Robert J 4

Latest patents

Publication Filing date Title
AU1335500A High efficiency wave generator
WO9960349A1 Transducer surface clearing method and apparatus
WO9906812A2 High accuracy measuring system
WO9838528A1 Condensate free ultrasonic transmitter
US5835454A Transducer shroud for improved transducer operation in the treatment of waste water
US6062070A Method and apparatus for the sonic measurement of sludge and clarity conditions during the treatment of waste water
WO9604630A1 High reliability instrument system
US5539670A Coating responsive material condition monitoring system
US5510779A Error compensating instrument system with digital communications
WO9204669A1 Improved imstrumentation system
CA2032384A1 Remote instrument testing system
JPH04156223A Essentially safety system
CA2028028A1 Intrinsically safe system
US5045797A Continuous condition sensing system determining liquid level by admittance measurement
WO9002319A1 Coating-responsive material condition monitoring system
GB8910905D0 Admittance-responsive instrument system
US4950998A Continuous condition sensing system
US4849754A Remotely calibratable instrument system
US4799174A Multiple set point condition monitoring systems
US4788488A Continuous condition sensing system