Inventor · disambiguated record
Xiu Xiu Cheng
Also filed as: CHENG XIU X · CHENG XIU-XIU
30 granted patents·22 pending applications·1,031 citations·filing 1998–2012
97Inventor score
Files withANDRX PHARMACEUTICALS INC10ANDRX CORP8ANDRX LABS LLC5ANDRX PHARMACEUTICALS LLC5CHENG XIU XIU4
Top patents by PatentIndex Score
52 records- 0197US6905708B2Controlled release oral dosage formANDRX PHARMACEUTICALS INC·Filed 2003·Granted Jun 14, 2005·76 cites·6 claims
- 0297US6790459B1Methods for treating diabetes via administration of controlled release metforminANDRX LABS LLC·Filed 2000·Granted Sep 14, 2004·125 cites·21 claims
- 0397US6099859AControlled release oral tablet having a unitary coreANDRX PHARMACEUTICALS INC·Filed 1998·Granted Aug 8, 2000·165 cites·29 claims
- 0495US6866866B1Controlled release metformin compositionsANDRX LABS LLC·Filed 2000·Granted Mar 15, 2005·58 cites·25 claims
- 0595US6284275B1Controlled release tablet having a unitary coreANDRX PHARMACEUTICALS INC·Filed 2000·Granted Sep 4, 2001·58 cites·39 claims
- 0694US7919116B2Controlled release metformin formulationsANDRX LABS LLC·Filed 2007·Granted Apr 5, 2011·27 cites·5 claims
- 0794US6270805B1Two pellet controlled release formulation for water soluble drugs which contains an alkaline metal stearateANDRX PHARMACEUTICALS INC·Filed 1998·Granted Aug 7, 2001·157 cites·18 claims
- 0893US6893660B2Stable pharmaceutical compositions without a stabilizerANDRX PHARMACEUTICALS INC·Filed 2002·Granted May 17, 2005·40 cites·5 claims
- 0993US6495162B2Controlled release oral tablet having a unitary coreANDRX PHARMACEUTICALS INC·Filed 2001·Granted Dec 17, 2002·39 cites·47 claims
- 1093US6099862AOral dosage form for the controlled release of a biguanide and sulfonylureaANDRX CORP·Filed 1998·Granted Aug 8, 2000·124 cites·4 claims
- 1191US8475841B2Controlled release metformin formulationsCHENG XIU XIU·Filed 2011·Granted Jul 2, 2013·18 cites·9 claims
- 1288US7988993B2Oral controlled release dosage formANDRX PHARMACEUTICALS INC·Filed 2003·Granted Aug 2, 2011·24 cites·5 claims
- 1384US8545880B2Controlled release oral dosage formLI BOYONG·Filed 2002·Granted Oct 1, 2013·13 cites·14 claims
- 1482US7771750B2Controlled release oral dosage formANDRX PHARMACEUTICALS LLC·Filed 2005·Granted Aug 10, 2010·4 cites·11 claims
- 1582US6238703B1Controlled release oral dosage form of ketoprofenANDRX PHARMACEUTICALS INC·Filed 2000·Granted May 29, 2001·11 cites·12 claims
- 1677US7237436B2Dosage form holder device and methods for immersion testingTIAN DACHENG·Filed 2006·Granted Jul 3, 2007·5 cites·14 claims
- 1777US7022342B2Controlled release oral dosage form of beta-adrenergic blocking agentsANDRX CORP INC·Filed 2002·Granted Apr 4, 2006·12 cites·8 claims
- 1877US6524620B2Diltiazem controlled release formulation and method of manufactureANDRX PHARMACEUTICALS INC·Filed 1998·Granted Feb 25, 2003·49 cites·26 claims
- 1974US7470435B2Extended release venlafaxine formulationANDRX PHARMACEUTICALS LLC·Filed 2003·Granted Dec 30, 2008·3 cites·18 claims
- 2070US7051606B2Dosage form holder device and methods for immersion testingANDRX LABS LLC·Filed 2004·Granted May 30, 2006·7 cites·11 claims
- 2167US2009123535A1Oral Controlled Release Formulation for Sedatives and Hypnotic AgentsCHENG XIU XIU·Filed 2008·Application pending·0 cites
- 2266US2006008526A1Controlled release metformin compositionsANDRX CORP·Filed 2005·Application pending·0 cites
- 2366US2006008525A1Controlled release metformin compositionsANDRX CORP·Filed 2005·Application pending·0 cites
- 2466US2006008523A1Controlled release metformin compositionsANDRX CORP·Filed 2005·Application pending·0 cites
- 2566US2006008524A1Controlled release metformin compositionsANDRX CORP·Filed 2005·Application pending·0 cites
- 2665US7931915B2Extended release venlafaxine formulationANDRX PHARMACEUTICALS LLC·Filed 2008·Granted Apr 26, 2011·0 cites·10 claims
- 2765US2004219209A1Controlled release metformin compositionsFiled 2004·Application pending·0 cites
- 2864US7713550B2Controlled release sodium valproate formulationANDRX CORP·Filed 2004·Granted May 11, 2010·1 cites·3 claims
- 2964US2007160671A1Biguanide formulationsANDRX CORP·Filed 2007·Application pending·0 cites
- 3064US2007237820A1Pharmaceutical formulations containing a non-steroidal antinflammatory drug and an antiulcerative drugANDRX PHARMACEUTICALS LLC·Filed 2007·Application pending·0 cites
- 3163US8309104B2Oral controlled release formulation for sedative and hypnotic agentsCHENG XIU XIU·Filed 2007·Granted Nov 13, 2012·0 cites·10 claims
- 3259US8668932B2Extended release venlafaxine formulationDIXIT MANESH·Filed 2011·Granted Mar 11, 2014·0 cites·14 claims
- 3358US8501227B2Stable pharmaceutical compositions without a stabilizerLI BOYONG·Filed 2005·Granted Aug 6, 2013·0 cites·18 claims
- 3458US8252327B2Oral controlled release dosage formDIXIT MANESH·Filed 2011·Granted Aug 28, 2012·0 cites·13 claims
- 3558US2009004284A1Controlled release tamsulosin hydrochloride formulationWATSON PHARMACEUTICALS INC·Filed 2007·Application pending·0 cites
- 3657US2004052848A1Biguanide formulationsFiled 2003·Application pending·0 cites
- 3757US2005163847A1Pharmaceutical formulations containing a non-steroidal antiinflammatory drug and an antiulcerative drugANDRX PHARMACEUTICALS LLC·Filed 2005·Application pending·0 cites
- 3856US6197347B1Oral dosage for the controlled release of analgesicANDRX PHARMACEUTICALS INC·Filed 1998·Granted Mar 6, 2001·15 cites·8 claims
- 3955US8747898B2Controlled release oral dosage formLI BOYONG·Filed 2010·Granted Jun 10, 2014·0 cites·11 claims
- 4055US2005226929A1Controlled release opioid analgesic formulationXIE JIANBO·Filed 2004·Application pending·0 cites
- 4154US2007209455A1Dosage form holder device and methods for immersion testingTIAN D·Filed 2007·Application pending·0 cites
- 4253US2005074494A1Itraconazole immediate release formulationFiled 2003·Application pending·0 cites
- 4352US9468633B2Oral controlled release dosage formDIXIT MANESH·Filed 2012·Granted Oct 18, 2016·0 cites·8 claims
- 4452US2005287185A1Extended release oxybutynin formulationWONG DAVID·Filed 2004·Application pending·0 cites
- 4551US2001024659A1Controlled release metformin formulationsANDRX CORP·Filed 2000·Application pending·0 cites
- 4649US2005276848A1Sustained release neutralized divalproex sodiumPODHIPLEUX NILOBON·Filed 2004·Application pending·0 cites
- 4749US2005112196A1Rapidly disintegrating formulationFiled 2004·Application pending·0 cites
- 4849US2004005359A1Controlled release oral dosage formFiled 2002·Application pending·0 cites
- 4947US2003035840A1Controlled release oral dosage formFiled 2001·Application pending·0 cites
- 5046US2007087055A1Directly compressible extended release alprazolam formulationJAN DAVID·Filed 2005·Application pending·0 cites
Showing the top 50 of 52 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →