Inventor · disambiguated record

Yingfang Tong

Also filed as: TONG YINGFANG

1 granted patent·1 pending application·0 citations·filing 2022–2024

1Inventor score

Technology areasC05G

Files withUNIV NORTH CHINA2

Top patents by PatentIndex Score

2 records

0164US12180125B2Method for preparing weathered coal-derived humic acid/urea-formaldehyde slow-release fertilizer granules by reactive extrusion process with depolymerization-activation-polycondensation trinity and fertilization methodUNIV NORTH CHINA·Filed 2024·Granted Dec 31, 2024·0 cites·3 claims
0259US2023123541A1Biodegradable urea-formaldehyde-based sand-fixing polymer material with slow nutrient release and water absorption and retentionUNIV NORTH CHINA·Filed 2022·Application pending·0 cites

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