Patents by Inventor Mary Ziping Luo

Mary Ziping Luo 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).

  • Patent number: 11446360
    Abstract: A high-purity inhalable insulin material, used for preparing a pulmonary pharmaceutical product, includes insulin particles having a particle size at the micrometer level and having the following characteristics: (i) the purity of insulin is not less than 96% on the dried basis; (ii) the total amount of insulin-related impurities is not more than 2%; (iii) the total amount of solvent impurities, which is not a co-solvent formulation component for a pulmonary product, is not more than 0.03%; and (iv) the total amount of non-solvent impurities is not more than 0.3%. Up to 99% by volume of the insulin particles in the inhalable insulin have a particle size of less than 5 ?m, based on the total volume of the insulin particles. A high-efficiency method prepares high-purity inhalable insulin material. The yield rate for the high-efficiency method is 75 to 85% or more.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: September 20, 2022
    Assignee: AMPHASTAR PHARMACEUTCALS, INC.
    Inventors: Jeffrey Ding, Aili Bo, Mary Ziping Luo, Jack Yongfeng Zhang
  • Publication number: 20190388514
    Abstract: A high-purity inhalable insulin material, used for preparing a pulmonary pharmaceutical product, includes insulin particles having a particle size at the micrometer level and having the following characteristics: (i) the purity of insulin is not less than 96% on the dried basis; (ii) the total amount of insulin-related impurities is not more than 2%; (iii) the total amount of solvent impurities, which is not a co-solvent formulation component for a pulmonary product, is not more than 0.03%; and (iv) the total amount of non-solvent impurities is not more than 0.3%. Up to 99% by volume of the insulin particles in the inhalable insulin have a particle size of less than 5 ?m, based on the total volume of the insulin particles. A high-efficiency method prepares high-purity inhalable insulin material. The yield rate for the high-efficiency method is 75 to 85% or more.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 26, 2019
    Inventors: Jeffrey Ding, Aili Bo, Mary Ziping Luo, Jack Yongfeng Zhang
  • Patent number: 10406210
    Abstract: A high-purity inhalable insulin material, used for preparing a pulmonary pharmaceutical product, includes insulin particles having a particle size at the micrometer level and having the following characteristics: (i) the purity of insulin is not less than 96% on the dried basis; (ii) the total amount of insulin-related impurities is not more than 2%; (iii) the total amount of solvent impurities, which is not a co-solvent formulation component for a pulmonary product, is not more than 0.03%; and (iv) the total amount of non-solvent impurities is not more than 0.3%. Up to 99% by volume of the insulin particles in the inhalable insulin have a particle size of less than 5 ?m, based on the total volume of the insulin particles. A high-efficiency method prepares high-purity inhalable insulin material. The yield rate for the high-efficiency method is 75 to 85% or more.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: September 10, 2019
    Assignee: Amphastar Pharmaceuticals, Inc.
    Inventors: Jeffrey Ding, Aili Bo, Mary Ziping Luo, Jack Yongfeng Zhang
  • Patent number: 10322168
    Abstract: A high-purity inhalable insulin material, used for preparing a pulmonary pharmaceutical product, includes insulin particles having a particle size at the micrometer level and having the following characteristics: (i) the purity of insulin is not less than 96% on the dried basis; (ii) the total amount of insulin-related impurities is not more than 2%; (iii) the total amount of solvent impurities, which is not a co-solvent formulation component for a pulmonary product, is not more than 0.03%; and (iv) the total amount of non-solvent impurities is not more than 0.3%. Up to 99% by volume of the insulin particles in the inhalable insulin have a particle size of less than 5 ?m, based on the total volume of the insulin particles. A high-efficiency method prepares high-purity inhalable insulin material. The yield rate for the high-efficiency method is 75 to 85% or more.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: June 18, 2019
    Assignee: Amphastar Pharmaceuticals, Inc.
    Inventors: Jeffrey Ding, Aili Bo, Mary Ziping Luo, Jack Yongfeng Zhang
  • Patent number: 10258573
    Abstract: A method of preparing an inhalable insulin suitable for pulmonary delivery includes: dissolving an insulin raw material in an acidic solution to form a dissolved insulin solution; titrating the dissolved insulin solution with a buffer solution to form a suspension comprising micronized insulin particles; and stabilizing the micronized insulin particles.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: April 16, 2019
    Assignee: Amphastar Pharmaceuticals, Inc.
    Inventors: Jeffrey Ding, Aili Bo, Mary Ziping Luo, Jack Yongfeng Zhang
  • Publication number: 20170196942
    Abstract: A high-purity inhalable insulin material, used for preparing a pulmonary pharmaceutical product, includes insulin particles having a particle size at the micrometer level and having the following characteristics: (i) the purity of insulin is not less than 96% on the dried basis; (ii) the total amount of insulin-related impurities is not more than 2%; (iii) the total amount of solvent impurities, which is not a co-solvent formulation component for a pulmonary product, is not more than 0.03%; and (iv) the total amount of non-solvent impurities is not more than 0.3%. Up to 99% by volume of the insulin particles in the inhalable insulin have a particle size of less than 5 ?m, based on the total volume of the insulin particles. A high-efficiency method prepares high-purity inhalable insulin material. The yield rate for the high-efficiency method is 75 to 85% or more.
    Type: Application
    Filed: September 29, 2016
    Publication date: July 13, 2017
    Applicant: Amphastar Pharmaceuticals Inc.
    Inventors: Jeffrey Ding, Aili Bo, Mary Ziping Luo, Jack Yongfeng Zhang
  • Publication number: 20170196941
    Abstract: A high-purity inhalable insulin material, used for preparing a pulmonary pharmaceutical product, includes insulin particles having a particle size at the micrometer level and having the following characteristics: (i) the purity of insulin is not less than 96% on the dried basis; (ii) the total amount of insulin-related impurities is not more than 2%; (iii) the total amount of solvent impurities, which is not a co-solvent formulation component for a pulmonary product, is not more than 0.03%; and (iv) the total amount of non-solvent impurities is not more than 0.3%. Up to 99% by volume of the insulin particles in the inhalable insulin have a particle size of less than 5 ?m, based on the total volume of the insulin particles. A high-efficiency method prepares high-purity inhalable insulin material. The yield rate for the high-efficiency method is 75 to 85% or more.
    Type: Application
    Filed: January 7, 2016
    Publication date: July 13, 2017
    Inventors: Jeffrey Ding, Aili Bo, Mary Ziping Luo, Jack Yongfeng Zhang
  • Publication number: 20160008287
    Abstract: A method of preparing an inhalable insulin suitable for pulmonary delivery includes: dissolving an insulin raw material in an acidic solution to form a dissolved insulin solution; titrating the dissolved insulin solution with a buffer solution to form a suspension comprising micronized insulin particles; and stabilizing the micronized insulin particles.
    Type: Application
    Filed: July 8, 2015
    Publication date: January 14, 2016
    Inventors: Jeffrey Ding, Aili Bo, Mary Ziping Luo, Jack Yongfeng Zhang
  • Publication number: 20150157650
    Abstract: Pharmaceutical compositions for long-term sustained release of bisphosphonate drugs are provided. In one embodiment, the composition includes an aqueous suspension of a solid which includes a salt of a bisphosphonate drug and a salt of pentavalent phosphorus oxoacid. The compositions can be used to treat a variety of bone diseases, including osteoporosis.
    Type: Application
    Filed: February 13, 2015
    Publication date: June 11, 2015
    Inventors: Jack Yongfeng Zhang, Mary Ziping Luo, Dingyuan Fei, Kevin Xie, Jie Fei Ding
  • Publication number: 20150157649
    Abstract: Pharmaceutical compositions for long-term sustained release of bisphosphonate drugs are provided. In one embodiment, the composition includes an aqueous suspension of a solid which includes a salt of a bisphosphonate drug and a salt of pentavalent phosphorus oxoacid. The compositions can be used to treat a variety of bone diseases, including osteoporosis.
    Type: Application
    Filed: February 13, 2015
    Publication date: June 11, 2015
    Inventors: Jack Yongfeng Zhang, Mary Ziping Luo, Dingyuan Fei, Kevin Xie, Jie Fei Ding
  • Patent number: 8974801
    Abstract: Pharmaceutical compositions for long-term sustained release of bisphosphonate drugs are provided. In one embodiment, the composition includes an aqueous suspension of a solid which includes a salt of a bisphosphonate drug and a salt of pentavalent phosphorus oxoacid. The compositions can be used to treat a variety of bone diseases, including osteoporosis.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: March 10, 2015
    Assignee: Amphastar Pharmaceuticals Inc.
    Inventors: Jack Yongfeng Zhang, Mary Ziping Luo, Dingyuan Fei, Kevin Xie, Jie Fei Ding
  • Patent number: 8367734
    Abstract: A stable suspension aerosol formulation of epinephrine is suitable for administration through inhalation comprising a therapeutically effective amount of epinephrine, hydrofluorocarbon propellant, co-solvent, surfactant, and antioxidant. The suspension aerosol formulation further comprises [pre-] pre-micronized epinephrine suspended in an alcohol/surfactant solution with hydrofluoroalkane propellant. The suspension formulation provides a highly efficient delivery of drug microparticles into the respirable region of patients' lungs and has the following advantages: lower dosage requirement, minimum alcohol content, with less impurities generated during storage, improved efficacy and safety, and exhibits no ozone depleting potential compared to a formulation containing chlorofluorocarbon.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: February 5, 2013
    Assignee: Amphastar Pharmaceuticals Inc.
    Inventors: Jianxin Gao, James Luo, Rong Zhou, Mary Ziping Luo, Jack Yongfeng Zhang
  • Patent number: 7468394
    Abstract: An oil-in-water propofol emulsion that contains soybean oil and egg lecithin, which provide a source of nutrition for microorganisms. Current products include additives to act as a microbial growth retardation agent, the processes described herein detail several methods for the optimization of the innate microbial retardation capability of propofol. Using this process improves the safety of a propofol emulsion solution by controlling microbial growth without the side effects associated with growth retardation additives.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: December 23, 2008
    Assignee: Amphastar Pharmaceuticals, Inc.
    Inventors: Jack Yongfeng Zhang, Mary Ziping Luo
  • Publication number: 20080153784
    Abstract: Pharmaceutical compositions for long-term sustained release of bisphosphonate drugs are provided. In one embodiment, the composition includes an aqueous suspension of a solid which includes a salt of a bisphosphonate drug and a salt of pentavalent phosphorus oxoacid. The compositions can be used to treat a variety of bone diseases, including osteoporosis.
    Type: Application
    Filed: June 25, 2007
    Publication date: June 26, 2008
    Inventors: Jack Yongfeng Zhang, Mary Ziping Luo, Dingyuan Fei, Kevin Xie, Jie Fei Ding
  • Patent number: 6827479
    Abstract: A uniform small particle homogenizer for liquid product comprising a pair of intensifier cylinder pumps (20) driven by a hydraulic system (22). The pumps have a power stroke side and a suction stroke side, and a pair of proximity sensors (24) that interface with each pump to detect forward and rearward movement. A microprocessor (26) with timing capabilities controls the sequential operation of each pump with the power stroke of each pump timed to alternately produce a flow of the liquid product with a precisely timed flow overlap period from the alternating pumps. Since the power stroke takes a longer time than the suction stroke, the instant each power stroke is started the opposite pump is timed to hesitate and slightly overlap until a constant product flow-rate is produced from the alternating pumps, which eliminates large variances in pressure and therefore achieves uniformity in product particle size.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: December 7, 2004
    Assignee: Amphastar Pharmaceuticals Inc.
    Inventors: Frank Zhishi Xia, Mary Ziping Luo, Jack Yongfeng Zhang
  • Patent number: 6793076
    Abstract: A glass bottle protective enclosure (10) designed to protect a glass bottle (100) in the event the bottle is subjected to an impact shock. The enclosure is provided with a leak-proof seal and is particularly adapted for protecting glass bottles (100) containing toxic injectable medication. The enclosure (10), which is preferably made from a transparent plastic, consists of a lower bottle container (12) which includes a base (14) and a plurality of shock absorbing protrusions (30), which are located to allow a bottle label to be clearly visible, on the base (14) is located at least one sensor cavity (120) into which is inserted an enclosure leakage sensor (122) consisting of either a water soluble sensor (124) or an electronic sensor (126). Both of which provide an indication if a bottle leakage occurs. To complete the enclosure (10) the container (12) includes a threaded bottle container cap (36) which includes a plurality of cap shock absorbing protrusions (52).
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: September 21, 2004
    Assignee: Amphastar Pharmaceuticals, Inc.
    Inventors: Mary Ziping Luo, Jack Yongfeng Zhang, Frank Z. Xia, Rong Zhou, Denny R. S. Ko
  • Patent number: 6551298
    Abstract: A controlled medicament security enclosure system that houses liquid filled reservoirs which consists of a portable enclosure (20) formed with a top half (22) and a bottom half (24) that permanently snap together to form a secure inseparable repository for the reservoirs. Inside the enclosure is at least one glass vial (36) for storing the liquid medicament with each vial having a sliding piston stopper (42) within that seals the inside of the vial and slides to maintain the liquid air free regardless of the volume. An adapter socket (48) is removably attached to the stopper and includes a hollow needle that pierces the stopper and permits a flowpath for the liquid. A flexible outlet tube (62) along with connectors on each end transmit the medicament to a mechanical drug delivery system that has a peristaltic pump and a control module.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: April 22, 2003
    Inventors: Jack Y. Zhang, Frank Zhishi Xia, Mary Ziping Luo
  • Patent number: 6418982
    Abstract: A process of bulk filling containers which includes the steps of arranging a number of containers upside down in a tray (24) that has a raised peripheral lip (26). This tray full of containers is then placed in a vacuum chamber (28) which is then evacuated to a predetermined level below atmospheric pressure. Liquid (36) is then introduced into the tray through a reservoir (38) and conduit (40) which penetrates the wall of the vacuum chamber and the vacuum within the chamber is gradually released at a rate that draws the liquid into the containers. At this point in the process unwanted liquid is rinsed away and the tray is removed from the chamber and turned right side up. The final step is to seal the top of the containers with an appropriate cap, barrier, tip or connection. A second embodiment adds a step to the process by positioning the containers upside down in a rack (74) and positioning the rack directly above the tray containing the liquid.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: July 16, 2002
    Assignee: Amphastar Pharmaceuticals Inc.
    Inventors: Jack Y. Zhang, Mary Ziping Luo, Frank Z Xia
  • Patent number: 6357626
    Abstract: A pre-filled oral liquid disposable plastic container along with its storage means are provided to deliver medication to a patient in a easy to use and sanitary manner. The plastic container (20) includes a hollow bulb portion (22) on one end and a hollow stem portion (24) on the other. A bulbous flange (26) is integrally formed onto the distal end or the hollow stem, thus permitting comfortable insertion of the container into a patient's mouth. A specified quantity of liquid medication (28) is pre-filled into the container with the container sized appropriately. The plastic in the container is colored, thereby indicating the type of liquid medication, and permitting the medication to be colorless and still maintain its identity. All of the containers have a recognizable shape on the bulb portion, such as a cylinder with spherical ends for adult medicine, or in some shape attractive to infants and small children.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: March 19, 2002
    Inventors: Jack Yongfeng Zhang, Anthony D. Marrs, Mary Ziping Luo
  • Patent number: 6343717
    Abstract: A pre-filled disposable pipette for pharmaceutical and cosmetic products which has a hollow, round pipette body (40). The body consists of a hollow, rigid bulb section (44) forming a reservoir for storage and dispersion of the liquid pharmaceutical or cosmetic product which is pre-filled within the body. The body (40) further includes a hollow tubular section (46) that is smaller in diameter and contiguous with the bulb section, for ease of handling the pipette. The preferred embodiment has a hollow, frangible upper tube (42) with a distal end that is sealed for introducing air into the body (40) when the seal is broken, thus releasing the liquid from the tubular section. The liquid is dispensed from the body by breaking the upper tube allowing air to enter the pipette with the liquid flowing by gravity. The second embodiment has a resilient bulb section and omits the upper tube. A tapered section (90) is added to the tubular section, with a hollow tip (86) on the end.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: February 5, 2002
    Inventors: Jack Yongfeng Zhang, Frank Zhishi Xia, Mary Ziping Luo