Inventor · disambiguated record

Chongfang Ma

Also filed as: MA CHONGFANG

1 granted patent·7 citations·filing 2004–2004

29Inventor score

Technology areasF24F

Files withUNIV BEIJING TECHNOLOGY1

Top patents by PatentIndex Score

1 record

0146US7875252B2Light-pipe system for lighting, ventilation and photocatalytic air purificationUNIV BEIJING TECHNOLOGY·Filed 2004·Granted Jan 25, 2011·7 cites·11 claims

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