Inventor · disambiguated record
Piyasena Hewawasam
Also filed as: HEWAWASAM PIYASENA
60 granted patents·19 pending applications·1,377 citations·filing 1992–2022
99Inventor score
Top patents by PatentIndex Score
79 records- 0198US7449479B2Hepatitis C virus inhibitorsBRISTOL MYERS SQUIBB CO·Filed 2005·Granted Nov 11, 2008·67 cites·16 claims
- 0298US7153848B2Inhibitors of HCV replicationBRISTOL MYERS SQUIBB CO·Filed 2005·Granted Dec 26, 2006·90 cites·32 claims
- 0398US6995174B2Hepatitis C virus inhibitorsBRISTOL MYERS SQUIBB CO·Filed 2003·Granted Feb 7, 2006·194 cites·48 claims
- 0497US7348425B2Inhibitors of HCV replicationBRISTOL MYERS SQUIBB CO·Filed 2006·Granted Mar 25, 2008·59 cites·1 claims
- 0596US7994171B2Compounds for the treatment of hepatitis CBRISTOL MYERS SQUIBB CO·Filed 2010·Granted Aug 9, 2011·20 cites·3 claims
- 0695US9850225B2Compounds useful as immunomodulatorsBRISTOL MYERS SQUIBB CO·Filed 2015·Granted Dec 26, 2017·13 cites·15 claims
- 0795US7521443B2Cyclopropyl fused indolobenzazepine HCV NS5B inhibitorsBRISTOL MYERS SQUIBB CO·Filed 2007·Granted Apr 21, 2009·13 cites·5 claims
- 0895US7132504B2Hepatitis C virus inhibitorsBRISTOL MYERS SQUIBB CO·Filed 2004·Granted Nov 7, 2006·95 cites·51 claims
- 0994US6184231B13-substituted-4-arylquinolin-2-one derivatives as potassium channel modulatorsBRISTOL MYERS SQUIBB·Filed 1999·Granted Feb 6, 2001·134 cites·14 claims
- 1093US7485633B2Cyclopropyl fused indolobenzazepine HCV NS5B inhibitorsBRISTOL MYERS SQUIBB CO·Filed 2007·Granted Feb 3, 2009·20 cites·3 claims
- 1192US8198449B2Compounds for the treatment of hepatitis CPRACITTO RICHARD·Filed 2009·Granted Jun 12, 2012·27 cites·10 claims
- 1292US7473688B2Indolobenzazepine HCV NS5B inhibitorsBRISTOL MYERS SQUIBB CO·Filed 2006·Granted Jan 6, 2009·26 cites·15 claims
- 1392US7456166B2Cyclopropyl fused indolobenzazepine HCV NS5B inhibitorsBRISTOL MYERS SQUIBB CO·Filed 2007·Granted Nov 25, 2008·24 cites·17 claims
- 1492US7399758B2Cyclopropyl fused indolobenzazepine HCV NS5B inhibitorsMEANWELL NICHOLAS A·Filed 2006·Granted Jul 15, 2008·28 cites·13 claims
- 1592US6469042B1Fluoro oxindole derivatives as modulators if KCNQ potassium channelsBRISTOL MYERS SQUIBB CO·Filed 2002·Granted Oct 22, 2002·32 cites·12 claims
- 1691US7521442B2Cyclopropyl fused indolobenzazepine HCV NS5B inhibitorsBRISTOL MYERS SQUIBB CO·Filed 2007·Granted Apr 21, 2009·18 cites·12 claims
- 1791US7521441B2Cyclopropyl fused indolobenzazepine HCV NS5B inhibitorsBRISTOL MYERS SQUIBB CO·Filed 2007·Granted Apr 21, 2009·18 cites·12 claims
- 1891US6271249B1Diphenyl imidazoles as potassium channel modulatorsBRISTOL MYERS SQUIBB CO·Filed 2000·Granted Aug 7, 2001·38 cites·8 claims
- 1990US8377980B2Hepatitis C virus inhibitorsBRISTOL MYERS SQUIBB CO·Filed 2010·Granted Feb 19, 2013·22 cites·16 claims
- 2090US8048887B2Compounds for the treatment of hepatitis CBRISTOL MYERS SQUIBB CO·Filed 2009·Granted Nov 1, 2011·17 cites·7 claims
- 2189US8309558B2Compounds for the treatment of hepatitis CYEUNG KAP-SUN·Filed 2012·Granted Nov 13, 2012·5 cites·2 claims
- 2289US7538103B2Compounds for the treatment of hepatitis CBRISTOL MYERS SQUIBB CO·Filed 2008·Granted May 26, 2009·17 cites·11 claims
- 2389US7538102B2Compounds for the treatment of Hepatitis CBRISTOL MYERS SQUIBB CO·Filed 2008·Granted May 26, 2009·16 cites·13 claims
- 2489US5602169A3-substituted oxindole derivatives as potassium channel modulatorsBRISTOL MYERS SQUIBB CO·Filed 1996·Granted Feb 11, 1997·66 cites·10 claims
- 2589US5565483A3-substituted oxindole derivatives as potassium channel modulatorsBRISTOL MYERS SQUIBB CO·Filed 1995·Granted Oct 15, 1996·75 cites·31 claims
- 2688US5869509ADiphenyl oxadiazolones as potassium channel modulatorsBRISTOL MYERS SQUIBB CO·Filed 1997·Granted Feb 9, 1999·63 cites·14 claims
- 2787US10144706B2Compounds useful as immunomodulatorsBRISTOL MYERS SQUIBB CO·Filed 2017·Granted Dec 4, 2018·7 cites·8 claims
- 2887US7541353B2Compounds for the treatment of hepatitis CBRISTOL MYERS SQUIBB CO·Filed 2008·Granted Jun 2, 2009·11 cites·12 claims
- 2986US8293909B2Compounds for the treatment of hepatitis CPRACITTO RICHARD·Filed 2010·Granted Oct 23, 2012·6 cites·3 claims
- 3085US9326973B2Hepatitis C virus inhibitorsBRISTOL MYERS SQUIBB CO·Filed 2013·Granted May 3, 2016·12 cites·13 claims
- 3185US7547690B2Compounds for the treatment of Hepatitis CBRISTOL MYERS SQUIBB CO·Filed 2008·Granted Jun 16, 2009·8 cites·13 claims
- 3282US8536338B2Compounds for the treatment of hepatitis CPRACITTO RICHARD·Filed 2012·Granted Sep 17, 2013·6 cites·10 claims
- 3382US8148382B2Compounds for the treatment of hepatitis CYEUNG KAP-SUN·Filed 2011·Granted Apr 3, 2012·2 cites·2 claims
- 3481US9776981B2Hepatitis C virus inhibitorsBRISTOL MYERS SQUIBB CO·Filed 2015·Granted Oct 3, 2017·2 cites·14 claims
- 3579US10745382B2Compounds useful as immunomodulatorsBRISTOL MYERS SQUIBB CO·Filed 2016·Granted Aug 18, 2020·2 cites·25 claims
- 3678US8722688B2Compounds for the treatment of hepatitis CBRISTOL MYERS SQUIBB CO·Filed 2013·Granted May 13, 2014·2 cites·1 claims
- 3776US6831080B2Cinnamide derivatives as KCNQ potassium channel modulatorsBRISTOL MYERS SQUIBB CO·Filed 2002·Granted Dec 14, 2004·11 cites·27 claims
- 3876US6077861ADiphenyl triazoles as potassium channel modulatorsBRISTOL MYERS SQUIBB CO·Filed 1998·Granted Jun 20, 2000·30 cites·12 claims
- 3975US8796466B2Hepatitis C virus inhibitorsBENDER JOHN A·Filed 2010·Granted Aug 5, 2014·3 cites·4 claims
- 4074US7169803B2N-substituted prodrugs of fluorooxindolesBRISTOL MYERS SQUIBB CO·Filed 2005·Granted Jan 30, 2007·1 cites·10 claims
- 4171US6613786B2Thiophenyl triazol-3-one derivatives as smooth muscle relaxantsBRISTOL MYERS SQUIBB CO·Filed 2002·Granted Sep 2, 2003·5 cites·21 claims
- 4270US8129367B2Compounds for the treatment of Hepatitis CHEWAWASAM PIYASENA·Filed 2008·Granted Mar 6, 2012·2 cites·11 claims
- 4370US2009162318A1Cyclopropyl Fused Indolobenzazepine HCV NS5B InhibitorsBRISTOL MYERS SQUIBB CO·Filed 2009·Application pending·0 cites
- 4468US2013171098A1Cyclopropyl Fused Indolobenzazepine HCV NS5B InhibitorsBRISTOL MYERS SQUIBB CO·Filed 2013·Application pending·0 cites
- 4567US2014045816A1Cyclopropyl Fused Indolobenzazepine HCV NS5B InhibitorsBRISTOL MYERS SQUIBB CO·Filed 2013·Application pending·0 cites
- 4665US5972961A4-aryl-3-aminoquinoline-2-one derivatives as potassium channel modulatorsBRISTOL MYERS SQUIBB CO·Filed 1998·Granted Oct 26, 1999·23 cites·9 claims
- 4765US2012316126A1Compounds for the Treatment of Hepatitis CYEUNG KAP-SUN·Filed 2012·Application pending·0 cites
- 4864US5939405APhosphate derivatives of diaryl 1,3,4-oxadiazoloneBRISTOL MYERS SQUIBB CO·Filed 1999·Granted Aug 17, 1999·18 cites·9 claims
- 4964US2014186299A1Cyclopropyl Fused Indolobenzazepine HCV NS5B InhibitorsBRISTOL MYERS SQUIBB CO·Filed 2014·Application pending·0 cites
- 5062US6162817ACarbamate derivatives of diaryl 1,3,4-oxadiazoloneBRISTOL MYERS SQUIBB CO·Filed 2000·Granted Dec 19, 2000·1 cites·10 claims
Showing the top 50 of 79 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →