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DOLE VALVE CO

Overview
  • Total Patents
    745
About

DOLE VALVE CO has a total of 745 patent applications. Its first patent ever was published in 1906. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets control, machines and mechanical elements are SKO FLO IND INC, NASH NATHAN E and FLOWCON INT AS.

Patent filings in countries

World map showing DOLE VALVE COs patent filings in countries
# Country Total Patents
#1 United States 467
#2 Canada 102
#3 United Kingdom 81
#4 France 44
#5 Germany 40
#6 Sweden 6
#7 Spain 4
#8 Denmark 1

Patent filings per year

Chart showing DOLE VALVE COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bauerlein Carl C 66
#2 Chace Thomas B 45
#3 Drapeau Harold B 38
#4 Erickson Howard L 37
#5 Eskin Samuel G 33
#6 Obermaier Frank E 32
#7 Lund James K 27
#8 Dahl Robert R 25
#9 Brown Clyde A 21
#10 Rimsha Victor E 20

Latest patents

Publication Filing date Title
US3593956A Shutoff valve and armature guide therefor
ES361142A3 Improvements in the construction of carbonet refrigerator systems and drink supplies. (Machine-translation by Google Translate, not legally binding)
US3537104A Non-adjustable encapsulated buzzer
US3655002A Electronic weighing system for batching operations
US3449919A Refrigerator with automatic ice cube maker
US3502899A Liquid level and ice bank control
US3496380A Solid state carbonator control
US3529430A Belt driven ice maker
US3540039A Warning device for automatic washing and drying machines
US3494437A Electronic scale
US3409178A Copy machine dispenser valve
US3488032A Dual outlet water valve
US3420579A Vacuum operated brake system
US3482598A Dispenser assembly for soda fountains
US3430918A Ball seat type fluid flow valve
US3456836A Solenoid actuator device
US3476316A Vacuum regulator
US3534355A Load warning device
US3386065A Snap acting thermal element
US3444897A Reversible flow control device