Inventor · disambiguated record

Ruifen Hao

Also filed as: HAO RUIFEN

1 granted patent·2 citations·filing 2018–2018

19Inventor score

Technology areasC22C

Files withPETROCHINA CO LTD1

Top patents by PatentIndex Score

1 record

0181US11313192B2Method for lowering oil pipe in gas well without well-killing, soluble bridge plug and material preparation method thereofPETROCHINA CO LTD·Filed 2018·Granted Apr 26, 2022·2 cites·10 claims

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →

Ruifen Hao — Patent Inventor | PatentIndex