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.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 11 | |
#2 | Canada | 1 |
# | Industry | |
---|---|---|
#1 | Machines | |
#2 | Mechanical elements | |
#3 | Packaging and shipping | |
#4 | Engines, pumps and turbines | |
#5 | Control |
# | Technology | |
---|---|---|
#1 | Unspecified technologies | |
#2 | Servomotors | |
#3 | Pumps | |
#4 | Venting or aerating devices | |
#5 | Lifting and pushing | |
#6 | Systems controlling non-electric variables | |
#7 | Pistons and sealings | |
#8 | Unspecified technologies |
# | 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 |
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 |