Inventor · disambiguated record
Jack Yongfeng Zhang
Also filed as: ZHANG JACK Y · ZHANG JACK YONGFENG
22 granted patents·10 pending applications·665 citations·filing 1992–2025
95Inventor score
Top patents by PatentIndex Score
32 records- 0193US8367734B1Stable epinephrine suspension formulation with high inhalation delivery efficiencyAMPHASTAR PHARMACEUTICALS INC·Filed 2010·Granted Feb 5, 2013·50 cites·13 claims
- 0292US6551298B1Controlled medicament security enclosure systemFiled 2000·Granted Apr 22, 2003·141 cites·20 claims
- 0390US6793076B1Glass bottle protective enclosureAMPHASTAR PHARMACEUTICALS INC·Filed 2002·Granted Sep 21, 2004·69 cites·22 claims
- 0490US6399087B1Propofol formulation with enhanced microbial inhibitionAMPHASTAR PHARMACEUTICALS INC·Filed 2000·Granted Jun 4, 2002·76 cites·14 claims
- 0589US6343717B1Pre-filled disposable pipettesFiled 2000·Granted Feb 5, 2002·97 cites·18 claims
- 0686US6418982B1Process of bulk fillingAMPHASTAR PHARMACEUTICALS INC·Filed 2000·Granted Jul 16, 2002·26 cites·10 claims
- 0783US6827479B1Uniform small particle homogenizer and homogenizing processAMPHASTAR PHARMACEUTICALS INC·Filed 2002·Granted Dec 7, 2004·34 cites·9 claims
- 0883US6357626B1Pre-filled oral liquid disposable plastic containerFiled 2001·Granted Mar 19, 2002·72 cites·13 claims
- 0976US6457612B1Sealable and manipulable pre-filled disposable pipetteAMPHASTAR PHARMACEUTICALS INC·Filed 2001·Granted Oct 1, 2002·38 cites·22 claims
- 1072US7468394B1Sterile pharmaceutical composition and process for a solution of propofol emulsion having microbial growth retardationAMPHASTAR PHARMACEUTICALS INC·Filed 2003·Granted Dec 23, 2008·3 cites·9 claims
- 1166US11446360B2High-purity inhalable particles of insulin and insulin analogues, and high-efficiency methods of manufacturing the sameAMPHASTAR PHARMACEUTICALS INC·Filed 2019·Granted Sep 20, 2022·0 cites·9 claims
- 1265US7219816B1Easily sealed and opened pre-filled, disposable pipetteAMPHASTAR PHARMACEUTICALS INC·Filed 2003·Granted May 22, 2007·19 cites·7 claims
- 1363US5205000ADual water-level toilet flushing apparatusXIA FRANK Z·Filed 1992·Granted Apr 27, 1993·21 cites·12 claims
- 1460US12496272B1Stable epinephrine suspension formulation for inhalation with HFO propellantAMPHASTAR PHARMACEUTICALS INC·Filed 2024·Granted Dec 16, 2025·0 cites·21 claims
- 1559US2024307637A1Intranasal (IN) Delivery Device for Delivering a Medication SolutionAMPHASTAR PHARMACEUTICALS INC·Filed 2023·Application pending·0 cites
- 1658US6139533AHypodermic needle capping deviceFiled 2000·Granted Oct 31, 2000·19 cites·16 claims
- 1758US2024299294A1Targeted delivery of effective therapeutic medications to the respiratory tractAMPHASTAR PHARMACEUTICALS INC·Filed 2023·Application pending·0 cites
- 1851US2023181500A1Naloxone Pharmaceutical Formulations for Intranasal (IN) DeliveryAMPHASTAR PHARMACEUTICALS INC·Filed 2021·Application pending·0 cites
- 1951US2024277632A1Epinephrine Pharmaceutical Formulations for Intranasal DeliveryAMPHASTAR PHARMACEUTICALS INC·Filed 2021·Application pending·0 cites
- 2050US10322168B2High-purity inhalable particles of insulin and insulin analogues, and high-efficiency methods of manufacturing the sameAMPHASTAR PHARMACEUTICALS INC·Filed 2016·Granted Jun 18, 2019·0 cites·8 claims
- 2150US8974801B2Long term sustained release pharmaceutical composition containing aqueous suspension of bisphosphonateZHANG JACK YONGFENG·Filed 2007·Granted Mar 10, 2015·0 cites·9 claims
- 2250US2023256099A1Safe Use of Bile Acids and Their Salts as Enhancers for Nasal Delivery of PharmaceuticalsAMPHASTAR PHARMACEUTICALS INC·Filed 2021·Application pending·0 cites
- 2349US10406210B2High-purity inhalable particles of insulin and insulin analogues, and high-efficiency methods of manufacturing the sameAMPHASTAR PHARMACEUTICALS INC·Filed 2016·Granted Sep 10, 2019·0 cites·24 claims
- 2449US2007154546A1Sustained release pharmaceutical compositionsZHANG JACK Y·Filed 2005·Application pending·0 cites
- 2547US11726049B2Small angle x-ray scattering methods for characterizing the iron core of iron carbohydrate colloid drug productsAMPHASTAR PHARMACEUTICALS INC·Filed 2021·Granted Aug 15, 2023·0 cites·24 claims
- 2644US2023271770A1Anti-Viral Pharmaceutical Formulations Administered Via Devices for Lung Targeted DeliveryAMPHASTAR PHARMACEUTICALS INC·Filed 2021·Application pending·0 cites
- 2743US11524987B2Highly purified recombinant human insulin (RHI) API and methods of producing the sameAMPHASTAR PHARMACEUTICALS INC·Filed 2019·Granted Dec 13, 2022·0 cites·35 claims
- 2841US12383516B1Albuterol aerosol suspension formulation for oral inhalation with high amount of green propellant hydrofluoroolefin (HFO) and free of co-solventAMPHASTAR PHARMACEUTICALS INC·Filed 2025·Granted Aug 12, 2025·0 cites·20 claims
- 2940US2015157649A1Long term sustained release pharmaceutical composition containing aqueous suspension of bisphosphonateAMPHASTAR PHARMACEUTICALS INC·Filed 2015·Application pending·0 cites
- 3040US2015157650A1Long term sustained release pharmaceutical composition containing aqueous suspension of bisphosphonateAMPHASTAR PHARMACEUTICALS INC·Filed 2015·Application pending·0 cites
- 3140US2023119833A1Nmr methods for characterizing iron sucroseAMPHASTAR PHARMACEUTICALS INC·Filed 2021·Application pending·0 cites
- 3239US10258573B2Micronized insulin and micronized insulin analogues prepared under acidic conditions, and methods of manufacturing the same under acidic conditionsAMPHASTAR PHARMACEUTICALS INC·Filed 2015·Granted Apr 16, 2019·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →