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HAYS CORP

Overview
  • Total Patents
    55
About

HAYS CORP has a total of 55 patent applications. Its first patent ever was published in 1926. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets measurement, machines and control are INT CONTROL AUTOMATION FINANCE, SIMMONS JR EDWARD E and SCOTT TESTERS INC.

Patent filings in countries

World map showing HAYS CORPs patent filings in countries
# Country Total Patents
#1 United States 48
#2 Canada 2
#3 United Kingdom 2
#4 Switzerland 1
#5 Germany 1
#6 France 1

Patent filings per year

Chart showing HAYS CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Donald Burns Frank 8
#2 Dreckmann Hubert 8
#3 Richardson Robert D 7
#4 Bailey George B 7
#5 Eller Harold E 6
#6 Arnold Soller 5
#7 Sprague Philip T 4
#8 Wilson Charles B 4
#9 Zdzieborski Jerzy H 3
#10 Nilson John R 2

Latest patents

Publication Filing date Title
US3696290A Magnetic non-contact thickness gauge with means to compensate the effects of stray fields on the gauge
US3590653A Means for trimming the position of control elements
US3546922A Method and means for analyzing low moisture concentration in gases
US3549089A Method and means for trimming position control members
US3539302A Apparatus for rapid analysis of trace gas
US3471776A Fluid bridge method and means of detecting gases having magnetic susceptibility
US3504273A Fluid bridge method and means of detecting gases having magnetic susceptibility
US3504274A Method and means of detecting gases having magnetic susceptibility and including a fluid bridge
US3504275A Fluid bridge method and means of detecting gases having magnetic susceptibility
US3499313A Method and means for continuously gauging the cross section of elongated stock
US3503553A Fuel metering combustion control system with automatic oxygen compensation
US3400069A Apparatus for continuously drying gas
US3289481A Gas sampling device
US3362221A Magnetic flow transmitter system
US3276244A Paramagnetic oxygen analyzer measuring cell
GB927480A Variable inductor controlled servosystem
US3015053A Variable inductor controlled servosystem
US3233166A Voltage stabilizing system
GB761950A Improvements relating to electrical systems for remote transmission of mechanical movements
US2934958A Gas sampling device