Inventor · disambiguated record
Guanfei Shi
Also filed as: Shi Guanfei
2 granted patents·1 citations·filing 2024–2024
29Inventor score
Top patents by PatentIndex Score
2 records- 0180US12203553B1Wear-resistant and low-friction coated piston ring and preparation method thereforASIMCO SHUANGHUAN PISTON RING YIZHENG CO LTD·Filed 2024·Granted Jan 21, 2025·1 cites·16 claims
- 0259US12345336B1Piston ring with hard plating, and preparation method thereforASIMCO SHUANGHUAN PISTON RING YIZHENG CO LTD·Filed 2024·Granted Jul 1, 2025·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →