Inventor · disambiguated record
Rika Obata
Also filed as: OBATA RIKA
2 granted patents·1 pending application·24 citations·filing 1989–2005
60Inventor score
Technology areasA61P
Top patents by PatentIndex Score
3 records- 0167US5036055AAcylated derivatives of etoposideBRISTOL MYERS CO·Filed 1989·Granted Jul 30, 1991·15 cites·12 claims
- 0247US5081234A4'-demethylepipodophyllotoxin glycosidesBRISTOL MYERS SQUIBB CO·Filed 1990·Granted Jan 14, 1992·9 cites·10 claims
- 0336US2008318842A1Cyclic Isodityrosine DerivativesNISHIYAMA SHIGERU·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →