Xinguo Wen

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Xi'an, Shaanxi, CN

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Patents Grantslast 30 patents

Information Patent Grant
Chemical oxygen self-rescue device
- Patent number 11,648,425
- Issue date May 16, 2023
- SHAANXI STAR EXPLOSION SAFETY POLYTRON TECHNOLOGIES INC
- Xinguo Wen
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Oxygen candle
- Patent number 11,559,707
- Issue date Jan 24, 2023
- SHAANXI STAR EXPLOSION SAFETY POLYTRON TECHNOLOGIES INC
- Xinguo Wen
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
OXYGEN CANDLE
- Publication number 20200368561
- Publication date Nov 26, 2020
- Shaanxi Star Explosion Safety Polytron Technologies Inc
- Xinguo WEN
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
Chemical Oxygen Self-Rescue Device
- Publication number 20200338371
- Publication date Oct 29, 2020
- Shaanxi Star Explosion Safety Polytron Technologies Inc
- Xinguo Wen
- A62 - LIFE-SAVING FIRE-FIGHTING