Inventor · disambiguated record
Hengli Ma
Also filed as: MA HENGLI
3 granted patents·66 citations·filing 1995–2004
71Inventor score
Top patents by PatentIndex Score
3 records- 0183US5639433AExtraction of rare earth elements using alkyl phosphinic acid or salt/alkyl or aryl phosphonic acid or ester blends as extractantCYTEC TECH CORP·Filed 1996·Granted Jun 17, 1997·42 cites·12 claims
- 0268US5622679AExtraction of rare earth elements using alkyl phosphinic acid or salt/tetraalkylammonium salt as extractantCYTEC TECH CORP·Filed 1995·Granted Apr 22, 1997·22 cites·10 claims
- 0342US7577845B2Information matrix cryptogramMA HENGLI·Filed 2004·Granted Aug 18, 2009·2 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →