KORVAL > TECHNOLOGY > R&D Performance

Trademark Registration

KORVAL — 2025-12-30T12:45:19+09:00

Trademark Registration

KORVAL — 2025-12-30T12:44:54+09:00

Trademark Registration

[DESIGN Registration] piston of actuator for Valve

KORVAL — 2025-12-30T12:44:09+09:00

[DESIGN Registration]

piston of actuator for Valve

[DESIGN Registration] piston of actuator for Valve

KORVAL — 2025-12-30T12:43:28+09:00

[DESIGN Registration]

piston of actuator for Valve

[Utility Model] Backflow prevention valve

KORVAL — 2025-12-30T12:42:21+09:00

[Utility Model]

Backflow prevention valve

[Utility Model] Temperature controller

KORVAL — 2025-12-30T12:41:16+09:00

[Utility Model] Temperature controller

Utility Model 0252567

[Patent] An expansion valve having unified device of double differential pressure(2)

KORVAL — 2025-12-30T12:34:25+09:00

Patent Registration

An expansion valve having unified device of double differential pressure(2)

[Patent] An expansion valve having unified device of double differential pressure(1)

KORVAL — 2025-12-30T12:33:50+09:00

Patent Registration

An expansion valve having unified device of double differential pressure(1)

[Patent] A control valve for cryogenic high pressure gas which having inflatable sealing member

KORVAL — 2025-12-30T12:33:13+09:00

Patent Registration

A control valve for cryogenic high pressure gas which having inflatable sealing member

[Patent] A control valve for cryogenic high pressure gas which having double plug structure

KORVAL — 2025-12-30T12:32:36+09:00

Patent Registration

A control valve for cryogenic high pressure gas which having double plug structure

[Patent] pilot operating type relief valve(2)

KORVAL — 2025-12-30T12:31:54+09:00

Patent Registration

pilot operating type relief valve(2)

[Patent] pilot operating type relief valve(1)

KORVAL — 2025-12-30T12:31:22+09:00

Patent Registration

pilot operating type relief valve(1)

[Patent] A Ball Valve with a seat contacting structure using an elastic means and a flowing liquid pressure

KORVAL — 2025-12-30T12:30:31+09:00

Patent Registration

A Ball Valve with a seat contacting structure using an elastic means and a flowing liquid pressure

[Patent] A Ball Valve with dual seat-contact structures and an internal pressure releasing structure

KORVAL — 2025-12-30T12:29:00+09:00

Patent Registration

A Ball Valve with dual seat-contact structures and an internal pressure releasing structure

[Patent] Hybrid high pressure drop control valve

KORVAL — 2025-12-30T12:28:11+09:00

Patent Registration

Hybrid high pressure drop control valve

[Patent] High Pressure drop control valve having three dimensional flow path

KORVAL — 2025-12-30T12:26:48+09:00

Patent Registration

High Pressure drop control valve having three dimensional flow path

[Patent] A Gate Valve with a dual disk structure

KORVAL — 2025-12-30T12:24:32+09:00

Patent Registration

A Gate Valve with a dual disk structure

[Patent] A GATE VALVE

KORVAL — 2025-12-30T12:22:39+09:00

Patent Registration

A GATE VALVE

[Patent] A Gate Valve with an optimized Lift distance of a valve stem

KORVAL — 2025-12-30T12:18:29+09:00

Patent Registration

A Gate Valve with an optimized Lift distance of a valve stem

PCT CN201498323B;Pressure reducing valve(China)

KORVAL — 2025-12-30T12:15:14+09:00

PCT CN201498323B;Pressure reducing valve(China)