Patents by Inventor Justin Jun Wei

Justin Jun Wei has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230140033
    Abstract: Disclosed herein are pharmaceutical formulations including epinephrine that have increased epinephrine retention over long-term storage, e.g., 30-months. In one aspect, a formulation includes: one or more of 0.1 mg/mL of epinephrine or a pharmaceutically acceptable salt thereof provided without any overage, a tonicity regulating agent including 8.2 mg/mL of sodium chloride, a pH adjusting agent including a mixture of 1.5 mg/mL sodium citrate dihydrate, 3.3 mg/mL of citric acid monohydrate, and, optionally, an as-needed amount of sodium hydroxide to maintain the pH level of the formulation within a range of 3.6 to 4.0, 0.075 mg/mL of sodium metabisulfite, and 4 ?g/mL of ethylene diamine tetra-acetate disodium. The formulation has an API recovery of 94.5% or more after at least 30 months of storage at long-term storage conditions defined as 25° C.±2° C. at 1 atmosphere. In addition, in another aspect, a formulation includes 1 mg/mL of epinephrine and other ingredients.
    Type: Application
    Filed: October 28, 2022
    Publication date: May 4, 2023
    Inventors: Jack Yongfeng Zhang, Mary Zi-ping Luo, Fonda Su, Marvin Lin, Jie Fei Ding, Justin Jun Wei, Wenbo Yu, Rong Zhou
  • Publication number: 20230137790
    Abstract: Disclosed herein are pharmaceutical formulations including epinephrine that have increased epinephrine retention over long-term storage, e.g., 30-months. In one aspect, a formulation includes: one or more of 0.1 mg/mL of epinephrine or a pharmaceutically acceptable salt thereof provided without any overage, a tonicity regulating agent including 8.2 mg/mL of sodium chloride, a pH adjusting agent including a mixture of 1.5 mg/mL sodium citrate dihydrate, 3.3 mg/mL of citric acid monohydrate, and, optionally, an as-needed amount of sodium hydroxide to maintain the pH level of the formulation within a range of 3.6 to 4.0, 0.075 mg/mL of sodium metabisulfite, and 4 ?g/mL of ethylene diamine tetra-acetate disodium. The formulation has an API recovery of 94.5% or more after at least 30 months of storage at long-term storage conditions defined as 25° C.±2° C. at 1 atmosphere. In addition, in another aspect, a formulation includes 1 mg/mL of epinephrine and other ingredients.
    Type: Application
    Filed: October 28, 2022
    Publication date: May 4, 2023
    Inventors: Jack Yongfeng Zhang, Mary Zi-ping Luo, Fonda Su, Marvin Lin, Jie Fei Ding, Justin Jun Wei, Wenbo Yu, Rong Zhou
  • Publication number: 20230119833
    Abstract: The present disclosure provides NMR relaxation methods for characterizing iron carbohydrate drug products. The methods measure 13C and 1H nuclei relaxation parameters such as T1 and PWHH include performing 2D T1 NMR, 1D 13C NMR and 1H NMR to characterize certain physiochemical properties of iron sucrose drug products, for purposes of assessing bioequivalence between a tested iron sucrose product and a comparator product. The disclosure further provides a novel Fe(III)/Fe(II) reduction method using a new reducing agent Na2S2O5 and an 1H NMR method to monitor the Fe(III)/Fe(II) reduction process.
    Type: Application
    Filed: May 4, 2021
    Publication date: April 20, 2023
    Inventors: Jack Yongfeng ZHANG, Mary Zi-Ping LUO, Jie Fei DING, Justin Jun WEI, Richard BAO
  • Publication number: 20230076626
    Abstract: Disclosed herein are pharmaceutical formulations including epinephrine that have increased epinephrine retention over long-term storage, e.g., 30-months. In one aspect, a formulation includes: one or more of 0.1 mg/mL of epinephrine or a pharmaceutically acceptable salt thereof provided without any overage, a tonicity regulating agent including 8.2 mg/mL of sodium chloride, a pH adjusting agent including a mixture of 1.5 mg/mL sodium citrate dihydrate, 3.3 mg/mL of citric acid monohydrate, and, optionally, an as-needed amount of sodium hydroxide to maintain the pH level of the formulation within a range of 3.6 to 4.0, 0.075 mg/mL of sodium metabisulfite, and 4 ?g/mL of ethylene diamine tetra-acetate disodium. The formulation has an API recovery of 94.5% or more after at least 30 months of storage at long-term storage conditions defined as 25° C.±2° C. at 1 atmosphere. In addition, in another aspect, a formulation includes 1 mg/mL of epinephrine and other ingredients.
    Type: Application
    Filed: October 28, 2022
    Publication date: March 9, 2023
    Inventors: Jack Yongfeng Zhang, Mary Zi-ping Luo, Fonda SU, Marvin Lin, Jie Fei Ding, Justin Jun Wei, Wenbo Yu, Rong Zhou