Ki-Woong HWANG

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Yangju-si, KR

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Patents Grantslast 30 patents

Information Patent Grant
Pipe fitting having anti-loosening structure
- Patent number 11,873,923
- Issue date Jan 16, 2024
- PPI PYUNGWHA CO., LTD.
- Hye-Jung Lee
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
One-touch pipe connection device
- Patent number 11,002,389
- Issue date May 11, 2021
- PPI PYUNGWHA CO., LTD.
- Jong-Tae Lee
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
FIXING CAP ASSEMBLY AND PIPE FITTING INCLUDING THE SAME
- Publication number 20240019054
- Publication date Jan 18, 2024
- PPI CO., LTD.
- Jong-Tae LEE
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
PIPE FITTING HAVING ANTI-LOOSENING STRUCTURE
- Publication number 20200370684
- Publication date Nov 26, 2020
- PPI PYUNGWHA CO., LTD.
- Hye-Jung LEE
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
ONE-TOUCH PIPE CONNECTION DEVICE
- Publication number 20190063643
- Publication date Feb 28, 2019
- PPI PYUNGWHA CO., LTD.
- Jong-Tae LEE
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...