Inventor · disambiguated record
Yiwen Ma
Also filed as: MA YIWEN
2 granted patents·79 citations·filing 2003–2020
58Inventor score
Files withTIANJIN SUNSHINE OPTICS TECHNOLIES CO LTD1ZHONGSHAN TIANYUAN VACUUM EQUIPMENT TECH CO LTD1
Top patents by PatentIndex Score
2 records- 0168US7899506B2Composite spectral measurement method and its spectral detection instrumentTIANJIN SUNSHINE OPTICS TECHNOLIES CO LTD·Filed 2003·Granted Mar 1, 2011·79 cites·17 claims
- 0234US11415133B2Multi-stage dry roots vacuum pumpZHONGSHAN TIANYUAN VACUUM EQUIPMENT TECH CO LTD·Filed 2020·Granted Aug 16, 2022·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →