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HYDRAULIC EQUIPMENT COMPANY

Overview
  • Total Patents
    12
About

HYDRAULIC EQUIPMENT COMPANY has a total of 12 patent applications. Its first patent ever was published in 1943. It filed its patents most often in United States and Canada. Its main competitors in its focus markets machines, mechanical elements and packaging and shipping are HYDRAULIC UNIT SPECIALTIES COMPANY, MOOG SERVOCONTROLS INC and ADEOLA AG.

Patent filings in countries

World map showing HYDRAULIC EQUIPMENT COMPANYs patent filings in countries
# Country Total Patents
#1 United States 11
#2 Canada 1

Patent filings per year

Chart showing HYDRAULIC EQUIPMENT COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Stephens William T 5
#2 Schmiel Herbert H 2
#3 Hrdlicka Jr Edward J 2
#4 Stacey Hugh J 1
#5 Hrdlicka Edward Jerry 1
#6 Hrdlicks Jr Edward J 1
#7 Hall Kirkham 1

Latest patents

Publication Filing date Title
US2499425A Control valve for double-acting hydraulic systems
US2600875A Silent relief valve for hydraulic systems
US2445781A Control system for multiple hydraulic hoists
US2456651A Tank unit with submerged valve and external pump
US2509257A Hydraulic control valve
US2565923A Wiper ring assembly
US2547055A Manually operated reciprocating pump
US2510150A Variable capacity reciprocating pump
US2495785A Lowering valve
US2477669A Control valve for double-acting hydraulic systems
US2468079A Relief valve
CA477462A Wiper ring assemblies