Patents by Inventor Robin Hwang

Robin Hwang 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: 20140094769
    Abstract: The present invention relates to medical devices and particularly to a medication delivery device for self-injection of a medication, or for healthcare professionals to administer a medication. In one embodiment, a medication delivery device utilizes a source of gas pressure to deploy a needle, deliver a desired amount of medication through the needle, and retract the needle for disposal. Fluid flow paths from the source of gas pressure communicate the gas pressure to the needle and to the medication in order to accomplish these steps. In one embodiment, a valve is positioned to open and close the flow of the pressurized gas to the needle and the flow of the medication to the needle, so that the valve can be operated to deploy the needle and deliver the medication through the needle when the user is ready for the injection. The valve can also be operated to retract the needle when the dose is complete.
    Type: Application
    Filed: September 23, 2013
    Publication date: April 3, 2014
    Inventors: CHORNG-FURE ROBIN HWANG, David Moore, John Zeis
  • Patent number: 8551071
    Abstract: The present invention relates to medical devices and particularly to a medication delivery device for self-injection of a medication, or for healthcare professionals to administer a medication. In one embodiment, a medication delivery device utilizes a source of gas pressure to deploy a needle, deliver a desired amount of medication through the needle, and retract the needle for disposal. Fluid flow paths from the source of gas pressure communicate the gas pressure to the needle and to the medication in order to accomplish these steps. In one embodiment, a valve is positioned to open and close the flow of the pressurized gas to the needle and the flow of the medication to the needle, so that the valve can be operated to deploy the needle and deliver the medication through the needle when the user is ready for the injection. The valve can also be operated to retract the needle when the dose is complete.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: October 8, 2013
    Assignee: Halozyme, Inc.
    Inventors: Chorng-Fure Robin Hwang, David Moore, John Zeis
  • Patent number: 8251958
    Abstract: A method and device for intradermal delivery of a reconstituted medicament. The device includes a chamber, which is in fluid communication with a microdevice, e.g. microabrader or one or more microneedles. A cartridge containing the medicament may be located within said chamber. At least one burstable membrane retains a medicament within the housing. The method involves the steps of positioning the device at a delivery site on the skin of a patient and intradermally administering the medicament by dispensing a diluent from a diluent source an through inlet port to rupture the membranes, reconstitute the medicament and deliver the reconstituted medicament through the microdevice to the dermal region of the skin.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: August 28, 2012
    Assignee: Becton, Dickinson and Company
    Inventors: Vincent J. Sullivan, Ronald J. Pettis, John A. Mikszta, John P. Dekker, III, Wendy D. Woodley, Anjana Bhuta Wills, Matthew S. Ferriter, C. Robin Hwang
  • Publication number: 20110251546
    Abstract: A method and device for intradermal delivery of a reconstituted medicament. The device includes a chamber, which is in fluid communication with a microdevice, e.g. microabrader or one or more microneedles. A cartridge containing the medicament may be located within said chamber. At least one burstable membrane retains a medicament within the housing. The method involves the steps of positioning the device at a delivery site on the skin of a patient and intradermally administering the medicament by dispensing a diluent from a diluent source an through inlet port to rupture the membranes, reconstitute the medicament and deliver the reconstituted medicament through the microdevice to the dermal region of the skin.
    Type: Application
    Filed: December 10, 2010
    Publication date: October 13, 2011
    Inventors: Vincent J. Sullivan, Ronald J. Pettis, John A. Mikszta, John P. Dekker, III, Wendy D. Woodley, Anjana Bhuta Wills, Matthew S. Ferriter, C. Robin Hwang
  • Publication number: 20110238037
    Abstract: The present invention relates to medical devices and particularly to a medication delivery device for self-injection of a medication, or for healthcare professionals to administer a medication. In one embodiment, a medication delivery device utilizes a source of gas pressure to deploy a needle, deliver a desired amount of medication through the needle, and retract the needle for disposal. Fluid flow paths from the source of gas pressure communicate the gas pressure to the needle and to the medication in order to accomplish these steps. In one embodiment, a valve is positioned to open and close the flow of the pressurized gas to the needle and the flow of the medication to the needle, so that the valve can be operated to deploy the needle and deliver the medication through the needle when the user is ready for the injection. The valve can also be operated to retract the needle when the dose is complete.
    Type: Application
    Filed: March 18, 2011
    Publication date: September 29, 2011
    Inventors: Chorng-Fure Robin Hwang, David Moore, John Zeis
  • Patent number: 7850663
    Abstract: A method and device for intradermal delivery of a reconstituted powdered medicament. The device includes a chamber, which is in fluid communication with a microdevice, e.g. microabrader or one or more microneedles. A cartridge containing the powdered medicament may be located within said chamber. At least one burstable membrane retains a powdered medicament within the housing. The method involves the steps of positioning the device at a delivery site on the skin of a patient and intradermally administering the medicament by dispensing a diluent from a diluent source an through inlet port to rupture the membranes, reconstitute the powdered medicament and deliver the reconstituted medicament through the microdevice to the dermal region of the skin.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: December 14, 2010
    Assignee: Becton, Dickinson and Company
    Inventors: Vincent J. Sullivan, Ronald J. Pettis, John A. Mikszta, John P. Dekker, III, Wendy D. Woodley, Anjana Bhuta Wills, Matthew S. Ferriter, C. Robin Hwang
  • Patent number: 7842310
    Abstract: A method of preparing a pharmaceutical composition is described, comprising 1) atomizing a liquid formulation of a therapeutic agent to produce an atomized formulation; 2) freezing said atomized formulation to form solid particles; and 3) drying said solid particles at about atmospheric pressure to produce a powder, wherein said drying is performed in the presence of vibration, internals, mechanical stirring, or a combination thereof. Another method is described, comprising 1) atomizing a liquid formulation of a therapeutic agent to produce an atomized formulation; 2) freezing said atomized formulation to form solid particles; and 3) drying said solid particles to produce a powder; wherein the atomized formulation comprises droplets having an average mean diameter of between about 35? and about 300?, and/or the powder comprises dried particles having an average mean diameter of between about 35? and about 300?. Compositions made by the above methods, and methods of using the compositions, are also described.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: November 30, 2010
    Assignee: Becton, Dickinson and Company
    Inventors: Robin Hwang, Vincent Sullivan, Juan Huang, Zhaolin Wang, John A. Mikszta, David Montgomery, Brandi Ford, Anjana Bhuta-Wills
  • Publication number: 20070190158
    Abstract: A method of preparing a pharmaceutical composition is described, comprising 1) atomizing a liquid formulation of a therapeutic agent to produce an atomized formulation; 2) freezing said atomized formulation to form solid particles; and 3) drying said solid particles at about atmospheric pressure to produce a powder, wherein said drying is performed in the presence of vibration, internals, mechanical stirring, or a combination thereof. Another method is described, comprising 1) atomizing a liquid formulation of a therapeutic agent to produce an atomized formulation; 2) freezing said atomized formulation to form solid particles; and 3) drying said solid particles to produce a powder; wherein the atomized formulation comprises droplets having an average mean diameter of between about 35? and about 300?, and/or the powder comprises dried particles having an average mean diameter of between about 35? and about 300?. Compositions made by the above methods, and methods of using the compositions, are also described.
    Type: Application
    Filed: March 26, 2007
    Publication date: August 16, 2007
    Applicant: Becton Dickinson and Company
    Inventors: Robin Hwang, Vincent Sullivan, Juan Huang, Zhaolin Wang, John Mikszta, David Montgomery, Brandi Ford, Anjana Bhuta-Wills
  • Publication number: 20040213745
    Abstract: A method of preparing a pharmaceutical composition is described, comprising 1) atomizing a liquid formulation of a therapeutic agent to produce an atomized formulation; 2) freezing said atomized formulation to form solid particles; and 3) drying said solid particles to produce a powder. Compositions made by the above methods, and methods of using the compositions, are also described.
    Type: Application
    Filed: February 20, 2004
    Publication date: October 28, 2004
    Inventors: Vincent Sullivan, John Mikszta, Robin Hwang, Kevin D. Mar, Robert L. Campbell
  • Publication number: 20040209361
    Abstract: Solid substrates for cell culture are UV-cross-linked PVA-based hydrogel polymer particles. The particles are biocompatible with living cells and support cell adherence. Bioaffecting molecules may be reversibly entrapped within the particles. The particles are capable of forming self-assembled aggregates with cultured cells in aqueous suspension. Preferably, the PVA-based polymer is PVA-SbQ.
    Type: Application
    Filed: April 18, 2003
    Publication date: October 21, 2004
    Inventors: John J. Hemperly, Chorng-Fure Robin Hwang, Steven C. Keith, Mohammad A. Heidaran
  • Publication number: 20040161489
    Abstract: A molding apparatus and molding method are provided for molding of small objects from a thermoplastic elastomer. The apparatus includes a heated transfer plate assembly, an insulation plate assembly adjacent the transfer plate assembly and a cooled cavity plate assembly. The transfer plate assembly is heated sufficiently to maintain a thermoplastic elastomer in a molten state. The cavity plate assembly is cooled sufficiently to solidify a thermoplastic elastomer injected into cavities of the cavity plate assembly.
    Type: Application
    Filed: February 13, 2004
    Publication date: August 19, 2004
    Inventors: C. Robin Hwang, Frank E. Martin, John D. Walker
  • Publication number: 20030186271
    Abstract: A method of preparing a pharmaceutical composition is described, comprising 1) atomizing a liquid formulation of a therapeutic agent to produce an atomized formulation; 2) freezing said atomized formulation to form solid particles; and 3) drying said solid particles at about atmospheric pressure to produce a powder, wherein said drying is performed in the presence of vibration, internals, mechanical stirring, or a combination thereof. Another method is described, comprising 1) atomizing a liquid formulation of a therapeutic agent to produce an atomized formulation; 2) freezing said atomized formulation to form solid particles; and 3) drying said solid particles to produce a powder; wherein the atomized formulation comprises droplets having an average mean diameter of between about 35&mgr; and about 300&mgr;, and/or the powder comprises dried particles having an average mean diameter of between about 35&mgr; and about 300&mgr;.
    Type: Application
    Filed: November 19, 2002
    Publication date: October 2, 2003
    Inventors: Robin Hwang, Vincent Sullivan, Juan Huang, Zhaolin Wang, John A. Mikszta, David Montgomery, Brandi Ford, Anjana Bhuta-Wills
  • Publication number: 20030180755
    Abstract: A method of preparing a pharmaceutical composition is described, comprising 1) atomizing a liquid formulation of a therapeutic agent to produce an atomized formulation; 2) freezing said atomized formulation to form solid particles; and 3) drying said solid particles at about atmospheric pressure to produce a powder, wherein said drying is performed in the presence of vibration, internals, mechanical stirring, or a combination thereof. Another method is described, comprising 1) atomizing a liquid formulation of a therapeutic agent to produce an atomized formulation; 2) freezing said atomized formulation to form solid particles; and 3) drying said solid particles to produce a powder; wherein the atomized formulation comprises droplets having an average mean diameter of between about 35&mgr; and about 300&mgr;, and/or the powder comprises dried particles having an average mean diameter of between about 35&mgr; and about 300&mgr;.
    Type: Application
    Filed: November 19, 2002
    Publication date: September 25, 2003
    Inventors: Robin Hwang, Vincent Sullivan, Juan Huang, Zhaolin Wang, John A. Mikszta, David Montgomery, Brandi Ford, Anjana Bhuta-Wills
  • Publication number: 20030039717
    Abstract: A molding apparatus and molding method are provided for molding of small objects from a thermoplastic elastomer. The apparatus includes a heated transfer plate assembly, an insulation plate assembly adjacent the transfer plate assembly and a cooled cavity plate assembly. The transfer plate assembly is heated sufficiently to maintain a thermoplastic elastomer in a molten state. The cavity plate assembly is cooled sufficiently to solidify a thermoplastic elastomer injected into cavities of the cavity plate assembly.
    Type: Application
    Filed: October 18, 2002
    Publication date: February 27, 2003
    Inventors: C. Robin Hwang, Frank E. Martin, John D. Walker
  • Publication number: 20030030186
    Abstract: A hydrostatic injection molding apparatus and process are provided for thermoplastic materials, especially thermoplastic elastomers. The apparatus includes a hot pot plate with a transfer chamber for receiving a thermoplastic material. The hot pot plate is heated to maintain the thermoplastic material in the transfer chamber in a molten state. A cavity plate is positioned adjacent the transfer pot plate, the cavity plate is formed with a plurality of cavities extending therein. Gates are formed in the hot pot plate and the cavity plate. The gates in the respective plates register with one another to provide communication between the transfer chamber and the cavities. The cavity plate is cooled to enable a rapid curing of the thermoplastic material therein.
    Type: Application
    Filed: September 27, 2002
    Publication date: February 13, 2003
    Inventors: Matthew T. Riiska, William J. Washburn, Don Ernst, Andrew G. Summerville, C. Robin Hwang, Frank E. Martin
  • Patent number: 6303708
    Abstract: A composition is provided which comprises a functionalized poly(phenylene ether) resin, poly(arylene sulfide) resin, epoxy functional alpha-olefin elastomer, elastomeric block copolymer, and a metal salt. The composition is preferably prepared by premixing a poly(phenylene ether) resin with an organic acid and a vinyl aromatic-diene block copolymer to form a premix, and then compounding the premix with an epoxy functional alpha-olefin elastomer, a poly(arylene sulfide) resin and a metal salt of an organic acid. The composition has enhanced levels of mechanical properties such as impact strength, and is suitable for making molded articles such as vertical automotive body panels.
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: October 16, 2001
    Assignee: General Electric Company
    Inventors: Sterling Bruce Brown, Chorng-Fure Robin Hwang, Hiromi Ishida, James Joseph Scobbo, Jr., John Bennie Yates, III
  • Patent number: 5986002
    Abstract: A medical article is molded from a silane-grafted polyolefin copolymer and crosslinked to have improved compression set and sealability so that the crosslinked article can be sterilized with substantially no changes in size or shape.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: November 16, 1999
    Assignee: Becton, Dickinson and Company
    Inventors: Chorng-Fure Robin Hwang, Christopher John Knors, Joel L. Williams
  • Patent number: 5961911
    Abstract: A process for making a closure assembly includes placing a closure cap portion in a compression mold, introducing a melt of elastomer, pressing the melt into a septum against the cap and applying a foil barrier against the septum. The process may be performed in a rotary compression molding apparatus.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: October 5, 1999
    Assignee: Becton Dickinson and Company
    Inventors: Chorng-Fure Robin Hwang, Frank E. Martin, Tim M. Sullivan, Joel L. Williams
  • Patent number: 5939490
    Abstract: Compositions are provided for compatibilized blends comprising compatibilizing poly(phenylene ether) resins and epoxy-functional polyolefins that exhibit improved resistance to delamination while providing high impact strength and other improved physical properties. Articles made from the compositions are useful for automotive lighting and under hood components.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: August 17, 1999
    Assignee: General Electric Company
    Inventors: Sterling Bruce Brown, John Robert Campbell, Chorng-Fure Robin Hwang, Steven Thomas Rice, Patric A. Rodgers, James Joseph Scobbo, Jr., John Bennie Yates
  • Patent number: 5837758
    Abstract: Compositions are provided which comprise a poly(phenylene ether) resin, a poly(arylene sulfide) resin and an ortho ester compound. The compositions can further comprise compatibilizing agents and reinforcing fillers to provide compositions that exhibit low flash molding characteristics. Articles molded from these compositions are useful in the electrical connector industry.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: November 17, 1998
    Assignee: General Electric Company
    Inventors: Sterling Bruce Brown, Chorng-Fure Robin Hwang, Steven Thomas Rice, James Joseph Scobbo, Jr., John Bennie Yates, III, Farid F. Khouri