Inventor · disambiguated record
Yannan Ma
Also filed as: MA YANNAN
1 granted patent·1 pending application·0 citations·filing 2022–2022
9Inventor score
Technology areasC21D
Files withBAOSHAN IRON & STEEL2
Top patents by PatentIndex Score
2 records- 0170US12467560B2High-strength and high-toughness bainite geological drilling pipe and manufacturing method thereforBAOSHAN IRON & STEEL·Filed 2022·Granted Nov 11, 2025·0 cites·13 claims
- 0262US2025012382A1Steel pipe for oil cylinder and manufacturing method thereforBAOSHAN IRON & STEEL·Filed 2022·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →