Inventor · disambiguated record

Songfeng Yang

Also filed as: YANG SONGFENG

1 granted patent·9 citations·filing 2008–2008

32Inventor score

Technology areasE21B

Files withBAKER HUGHES INC1

Top patents by PatentIndex Score

1 record

0163US7905279B2Combination whipstock and seal bore diverter systemBAKER HUGHES INC·Filed 2008·Granted Mar 15, 2011·9 cites·23 claims

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