Inventor · disambiguated record
Qingyian Liu
Also filed as: LIU QINGYIAN
41 granted patents·17 pending applications·357 citations·filing 2000–2025
97Inventor score
Top patents by PatentIndex Score
58 records- 0194US8426447B2Spiro-tricyclic ring compounds as beta-secretase modulators and methods of useWHITE RYAN·Filed 2009·Granted Apr 23, 2013·58 cites·22 claims
- 0294US7514566B2Thiazole compounds and methods of useAMGEN INC·Filed 2007·Granted Apr 7, 2009·38 cites·48 claims
- 0393US7919504B2Thiadiazole modulators of PKBAMGEN INC·Filed 2008·Granted Apr 5, 2011·30 cites·16 claims
- 0492US7115607B2Substituted piperazinyl amides and methods of useAMGEN INC·Filed 2002·Granted Oct 3, 2006·42 cites·14 claims
- 0591US7579347B2Vanilloid receptor ligands and their use in treatmentsAMGEN INC·Filed 2005·Granted Aug 25, 2009·17 cites·9 claims
- 0691US7265138B2Vanilloid receptor ligands and their use in treatmentsAMGEN INC·Filed 2004·Granted Sep 4, 2007·48 cites·12 claims
- 0791US7253196B2Inhibitors of 11-β-hydroxy steroid dehydrogenase type 1BIOVITRUM AB·Filed 2005·Granted Aug 7, 2007·19 cites·15 claims
- 0890US9718803B2Unsaturated nitrogen heterocyclic compounds useful as PDE10 inhibitorsAMGEN INC·Filed 2015·Granted Aug 1, 2017·8 cites·19 claims
- 0990US8957073B2Unsaturated nitrogen heterocyclic compounds useful as PDE10 inhibitorsALLEN JENNIFER R·Filed 2011·Granted Feb 17, 2015·15 cites·31 claims
- 1089US12054476B2KIF18A inhibitorsAMGEN INC·Filed 2021·Granted Aug 6, 2024·1 cites·31 claims
- 1188US7807700B2Inhibitors of 11-β-hydroxy steroid dehydrogenase type 1AMGEN INC·Filed 2007·Granted Oct 5, 2010·12 cites·16 claims
- 1286US7541474B2Catalyzed process of making C-5-substituted heterocyclic inhibitors of 11β-hydroxy steroid dehydrogenase type 1AMGEN INC·Filed 2006·Granted Jun 2, 2009·5 cites·34 claims
- 1385US12509442B2KIF18A inhibitorsAMGEN INC·Filed 2024·Granted Dec 30, 2025·0 cites·32 claims
- 1482US9303028B2Azetidine and piperidine compounds useful as PDE10 inhibitorsAMGEN INC·Filed 2014·Granted Apr 5, 2016·4 cites·18 claims
- 1582US9096527B2TRPM8 antagonists and their use in treatmentsAMGEN INC·Filed 2014·Granted Aug 4, 2015·5 cites·38 claims
- 1682US6849639B2Integrin inhibitors and their methods of useAMGEN INC·Filed 2000·Granted Feb 1, 2005·19 cites·8 claims
- 1780US9556135B2Amino-dihydrothiazine and amino-dioxido dihydrothiazine compounds as beta-secretase antagonists and methods of useAMGEN INC·Filed 2013·Granted Jan 31, 2017·2 cites·38 claims
- 1880US8691986B2Azetidine and piperidine compounds useful as PDE10 inhibitorsAMGEN INC·Filed 2013·Granted Apr 8, 2014·3 cites·8 claims
- 1978US9174992B2Heterobicyclic compoundsAMGEN INC·Filed 2013·Granted Nov 3, 2015·4 cites·17 claims
- 2076US8883782B2Spiro-tetracyclic ring compounds as beta-secretase modulators and methods of useCHENG YUAN·Filed 2011·Granted Nov 11, 2014·4 cites·18 claims
- 2176US2025304599A1Macrocyclic compounds and methods of useAMGEN INC·Filed 2024·Application pending·0 cites
- 2275US12459932B2KIF18A inhibitorsAMGEN INC·Filed 2019·Granted Nov 4, 2025·1 cites·34 claims
- 2375US9096615B2Bridged bicyclic amino thiazine dioxide compounds as inhibitors of beta-secretase and methods of use thereofAMGEN INC·Filed 2014·Granted Aug 4, 2015·2 cites·32 claims
- 2474US8541592B2Inhibitors of 11-beta-hydroxysteroid dehydrogenase type 1HENRIKSSON MARTIN·Filed 2006·Granted Sep 24, 2013·3 cites·11 claims
- 2573US9296734B2Perfluorinated 5,6-dihydro-4H-1,3-oxazin-2-amine compounds as beta-secretase inhibitors and methods of useAMGEN INC·Filed 2014·Granted Mar 29, 2016·2 cites·39 claims
- 2672US8686011B2Inhibitors of 11-β-hydroxy steroid dehydrogenase type 1HENRIKSSON MARTIN·Filed 2011·Granted Apr 1, 2014·3 cites·5 claims
- 2771US9725469B2Amino-oxazine and amino-dihydrothiazine compounds as beta-secretase modulators and methods of useAMGEN INC·Filed 2013·Granted Aug 8, 2017·1 cites·15 claims
- 2871US8084479B2Thiazole compounds and methods of useZENG QINGPING·Filed 2009·Granted Dec 27, 2011·1 cites·20 claims
- 2970US8778941B2TRPM8 antagonists and their use in treatmentsBROWN JAMES·Filed 2012·Granted Jul 15, 2014·1 cites·33 claims
- 3070US7662811B21,2,3,4-tetrahydropyrazin-2-yl acetamides and methods of useAMGEN INC·Filed 2005·Granted Feb 16, 2010·1 cites·13 claims
- 3169US9550762B2Cyclopropyl fused thiazin-2-amine compounds as beta-secretase inhibitors and methods of useAMGEN INC·Filed 2015·Granted Jan 24, 2017·1 cites·95 claims
- 3269US2025236631A1Macrocyclic compounds and methods of useAMGEN INC·Filed 2025·Application pending·0 cites
- 3367US7393852B2Piperazine derivatives and methods of useAMGEN INC·Filed 2004·Granted Jul 1, 2008·3 cites·42 claims
- 3465US7425631B2Compounds and methods of useAMGEN INC·Filed 2004·Granted Sep 16, 2008·2 cites·6 claims
- 3564US7199244B2Cyclic amine derivatives and methods of useARRAY BIOPHARMA INC·Filed 2004·Granted Apr 3, 2007·2 cites·48 claims
- 3664US2009264424A1Vanilloid receptor ligands and their use in treatmentsAMGEN INC·Filed 2009·Application pending·0 cites
- 3758US2014107109A1Amino-dihydrothiazine and amino-dioxido dihydrothiazine compounds as beta-secretase antagonists and methods of useAMGEN INC·Filed 2013·Application pending·0 cites
- 3857US9493459B2Azetidine and piperidine compounds useful as PDE10 inhibitorsAMGEN INC·Filed 2016·Granted Nov 15, 2016·0 cites·3 claims
- 3957US2014213572A1Unsaturated nitrogen heterocyclic compounds useful as pde10 inhibitorsAMGEN INC·Filed 2014·Application pending·0 cites
- 4057US2009048224A1Compounds and methods of useAMGEN INC·Filed 2008·Application pending·0 cites
- 4154US2024124442A1Tricyclic-amido-bicyclic prmt5 inhibitorsAMGEN INC·Filed 2022·Application pending·0 cites
- 4254US2009054460A1Piperazine derivatives and methods of useCHEN JIAN J·Filed 2008·Application pending·0 cites
- 4352US12473289B2Heterocyclic compounds as delta-5 desaturase inhibitors and methods of useAMGEN INC·Filed 2020·Granted Nov 18, 2025·0 cites·10 claims
- 4452US7932421B2N-cyclohexyl benzamides and benzeneacetamides as inhibitors of 11-beta-hydroxysteroid dehydrogenasesAMGEN INC·Filed 2007·Granted Apr 26, 2011·0 cites·26 claims
- 4552US2011166132A1Gamma Secretase ModulatorsAMGEN INC·Filed 2008·Application pending·0 cites
- 4652US2023159510A1Novel prmt5 inhibitorsAMGEN INC·Filed 2021·Application pending·0 cites
- 4752US2014235642A1Trpm8 antagonists and their use in treatmentsAMGEN INC·Filed 2014·Application pending·0 cites
- 4852US2024101570A1Tricyclic carboxamide derivatives as prmt5 inhibitorsAMGEN INC·Filed 2021·Application pending·0 cites
- 4951US2011118234A1Urea Compounds as Gamma Secretase ModulatorsBISWAS KAUSTAV·Filed 2009·Application pending·0 cites
- 5048US11548903B2Bicyclic thiazine and oxazine derivatives as beta-secretase inhibitors and methods of useAMGEN INC·Filed 2017·Granted Jan 10, 2023·0 cites·29 claims
Showing the top 50 of 58 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →