Learn more

EDCLIFF INSTR

Overview
  • Total Patents
    18
About

EDCLIFF INSTR has a total of 18 patent applications. Its first patent ever was published in 1955. It filed its patents most often in United States, Germany and France. Its main competitors in its focus markets measurement, electrical machinery and energy and control are EDCLIFF INSTR INC, METALLUX AG and MARUSAN NAME KK.

Patent filings in countries

World map showing EDCLIFF INSTRs patent filings in countries
# Country Total Patents
#1 United States 12
#2 Germany 2
#3 France 2
#4 Canada 1
#5 United Kingdom 1

Patent filings per year

Chart showing EDCLIFF INSTRs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Darlington William W 3
#2 Wolfkamp Albertus 2
#3 Rehnborg Edward H 2
#4 Semple Robert E 2
#5 Pitzer Robert L 1
#6 Hartley Byron L 1
#7 Sayre Jack L 1
#8 Robinson Wayne W 1
#9 Avellis Cosmo L 1
#10 Enos Harold B 1

Latest patents

Publication Filing date Title
US4308520A Tire pressure indicator
US4156226A Transducer assembly
US4192183A Pressure ratio transducer system
US3940673A Aircraft altitude control system
US3812727A Accelerometer
US3537308A Altitude and vertical velocity indicator
FR1442120A Potentiometer
US3116470A Hard backing bar for adjustable wire wound systems
US3106095A Pressure adapter for pressure transducers
US3182927A Stabilized test head
GB887603A An improved pressure transducer
US2940059A Potentiometer
US2952827A Electric contact
US2813183A Adjustable resistors
CA804754A Potentiometer construction