Yifei Jenny Jin

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Coating compositions and method for jewelries
- Patent number 11,185,139
- Issue date Nov 30, 2021
- Oujie Kevin Tong
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Solar-powered autonomous robotic water surface maintenance and clea...
- Patent number 11,161,753
- Issue date Nov 2, 2021
- Lisa Rousha Wang
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Multi-functional wearable dome assembly and method of using the same
- Patent number 11,134,739
- Issue date Oct 5, 2021
- Yifei Jenny Jin
- A62 - LIFE-SAVING FIRE-FIGHTING