Patents by Inventor Edward C. Gunzel

Edward C. Gunzel 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: 20240350739
    Abstract: A stopper for use in injector devices, where the stopper having an outer side configured for engagement with an interior bore of a barrel of the injector device. The stoppers may include an elastomer body, a multi-layer barrier coupled to the elastomer body, the multi-layer barrier having an inner surface oriented toward the elastomer body and an outer surface oriented away from the elastomer body, the multi-layer barrier including a first layer and a second layer, the first layer defining the inner surface and the second layer defining the outer surface, and the multi-layer barrier having at least one micro feature formed by the first layer, the at least one micro feature including one or both of a micro groove and/or a micro rib.
    Type: Application
    Filed: August 27, 2021
    Publication date: October 24, 2024
    Inventors: Edward H. Cully, Edward C. Gunzel, William G. Hardie
  • Publication number: 20240017016
    Abstract: The present disclosure is directed to pre-filled multi-dose injection devices and related therapeutic formulations and methods that lack a cloud point. The therapeutic formulation may be a transparent solution, and preservatives may remain within the aqueous phase without being phase separated to retain antimicrobial effectiveness.
    Type: Application
    Filed: November 15, 2021
    Publication date: January 18, 2024
    Inventors: Edward C. Gunzel, Thomas W. Patapoff
  • Publication number: 20230414878
    Abstract: The present disclosure is directed to pre-filled injection devices and related therapeutic formulations and methods that lack fatty acid particles. The therapeutic formulation may remain fatty acid particle free or substantially fatty acid particle free over time or when subjected to accelerated aging conditions.
    Type: Application
    Filed: November 15, 2021
    Publication date: December 28, 2023
    Inventors: Edward C. Gunzel, Thomas W. Patapoff
  • Patent number: 11654241
    Abstract: A container having a barrier layer is provided. The container may be of thermoplastic and the barrier may inhibit materials from leaching from the thermoplastic material or from extraction of compounds from medicants by the thermoplastic. A process is also described that allows for molding thin barrier layers as container lines and for forming thermoplastic containers with barrier liners.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: May 23, 2023
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Edgar G. Ashmead, Edward C. Gunzel, Michael Moritz
  • Patent number: 11612697
    Abstract: A container having a barrier layer is provided. The container may be of thermoplastic and the barrier may inhibit materials from leaching from the thermoplastic material or from extraction of compounds from medicants by the thermoplastic. A process is also described that allows for molding thin barrier layers as container lines and for forming thermoplastic containers with barrier liners.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: March 28, 2023
    Inventor: Edward C. Gunzel
  • Publication number: 20210260299
    Abstract: A container having a barrier layer is provided. The container may be of thermoplastic and the barrier may inhibit materials from leaching from the thermoplastic material or from extraction of compounds from medicants by the thermoplastic. A process is also described that allows for molding thin barrier layers as container lines and for forming thermoplastic containers with barrier liners.
    Type: Application
    Filed: May 12, 2021
    Publication date: August 26, 2021
    Inventors: Edgar G. Ashmead, Edward C. Gunzel, Michael Moritz
  • Patent number: 11020531
    Abstract: A pre-filled syringe having containing therein at least one therapeutic is provided. The syringe contains a silicone free barrel and an elastomeric syringe stopper that is covered with an expanded polytetrafluoroethylene barrier layer. The presence of a barrier layer that is at least partially porous on the outside of the syringe stopper improves the seal between the stopper and syringe barrel and minimizes the sliding force. In some embodiments, the barrel is formed of a glass material such as a borosilicate glass, that is free of silicone or other lubricants.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: June 1, 2021
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Edgar G. Ashmead, Edward C. Gunzel, Michael Moritz
  • Publication number: 20210146054
    Abstract: The present disclosure relates to medical devices such as syringes, auto-injectors, and pens that inhibit oxygen permeation into the fluid chamber. The medical device includes a lubricant-free (e.g., silicone) or a siliconized barrel having an interior surface defining a fluid chamber, an elastomeric stopper, and a plunger rod. In one embodiment, at least a portion of the interior surface of the barrel is reduced to increase the interference fit between the stopper and the barrel. In another embodiment, the stopper may include a plurality of ribs and a valley between each pair of ribs may include a ring member provided in each of the valleys. The ring member includes an oxygen-absorbing, an oxygen-adsorbing material, or both, to bind any oxygen that permeates into the syringe, auto-injector, or pen. In yet another embodiment, the stopper may include a barrier coating including an oxygen barrier material to inhibit or prevent oxygen permeation.
    Type: Application
    Filed: April 24, 2018
    Publication date: May 20, 2021
    Inventors: Edward H. Cully, Edward C. Gunzel, Christine M. Scotti
  • Publication number: 20200061298
    Abstract: A pre-filled syringe having containing therein at least one therapeutic is provided. The syringe contains a silicone free barrel and an elastomeric syringe stopper that is covered with an expanded polytetrafluoroethylene barrier layer. The presence of a barrier layer that is at least partially porous on the outside of the syringe stopper improves the seal between the stopper and syringe barrel and minimizes the sliding force. In some embodiments, the barrel is formed of a glass material such as a borosilicate glass, that is free of silicone or other lubricants.
    Type: Application
    Filed: October 3, 2019
    Publication date: February 27, 2020
    Inventors: Edgar G. Ashmead, Edward C. Gunzel, Michael Moritz
  • Publication number: 20200046905
    Abstract: A container having a barrier layer is provided. The container may be of thermoplastic and the barrier may inhibit materials from leaching from the thermoplastic material or from extraction of compounds from medicants by the thermoplastic. A process is also described that allows for molding thin barrier layers as container lines and for forming thermoplastic containers with barrier liners.
    Type: Application
    Filed: October 14, 2019
    Publication date: February 13, 2020
    Inventors: Edgar G. Ashmead, Edward C. Gunzel, Michael Moritz
  • Patent number: 10478563
    Abstract: A container having a barrier layer is provided. The container may be of thermoplastic and the barrier may inhibit materials from leaching from the thermoplastic material or from extraction of compounds from medicants by the thermoplastic. A process is also described that allows for molding thin barrier layers as container lines and for forming thermoplastic containers with barrier liners.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: November 19, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Edgar G. Ashmead, Edward C. Gunzel, Michael P. Moritz
  • Patent number: 10471212
    Abstract: A pre-filled syringe having containing therein at least one therapeutic is provided. The syringe contains a silicone free barrel and an elastomeric syringe stopper that is covered with an expanded polytetrafluoroethylene barrier layer. The presence of a barrier layer that is at least partially porous on the outside of the syringe stopper improves the seal between the stopper and syringe barrel and minimizes the sliding force. In some embodiments, the barrel is formed of a glass material such as a borosilicate glass, that is free of silicone or other lubricants.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: November 12, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Edgar G. Ashmead, Edward C. Gunzel, Michael P. Moritz
  • Publication number: 20170173266
    Abstract: A container having a barrier layer is provided. The container may be of thermoplastic and the barrier may inhibit materials from leaching from the thermoplastic material or from extraction of compounds from medicants by the thermoplastic. A process is also described that allows for molding thin barrier layers as container lines and for forming thermoplastic containers with barrier liners.
    Type: Application
    Filed: February 6, 2017
    Publication date: June 22, 2017
    Inventors: Edgar G. Ashmead, Edward C. Gunzel, Michael P. Moritz
  • Publication number: 20170173267
    Abstract: A pre-filled syringe having containing therein at least one therapeutic is provided. The syringe contains a silicone free barrel and an elastomeric syringe stopper that is covered with an expanded polytetrafluoroethylene barrier layer. The presence of a barrier layer that is at least partially porous on the outside of the syringe stopper improves the seal between the stopper and syringe barrel and minimizes the sliding force. In some embodiments, the barrel is formed of a glass material such as a borosilicate glass, that is free of silicone or other lubricants.
    Type: Application
    Filed: February 6, 2017
    Publication date: June 22, 2017
    Inventors: Edgar G. Ashmead, Edward C. Gunzel, Michael P. Moritz
  • Patent number: 9597458
    Abstract: A container having a barrier layer is provided. The container may be of thermoplastic and the barrier may inhibit materials from leaching from the thermoplastic material or from extraction of compounds from medicants by the thermoplastic. A process is also described that allows for molding thin barrier layers as container lines and for forming thermoplastic containers with barrier liners.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: March 21, 2017
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Edgar G. Ashmead, Edward C. Gunzel, Michael P. Moritz
  • Patent number: 9276324
    Abstract: A selectively reflective construct, and a method for making the construct, are described. In one embodiment reflectance, transmission and absorption properties may be controlled in multiple electromagnetic bands. A construct is described comprising a) a thermally transparent, visually opaque substrate comprising a polymeric material and a colorant, and b) a thermally reflective layer comprising a low emissivity component which is optionally transparent to radar signal.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: March 1, 2016
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: William D. Kelsey, Gregory D. Culler, Emmanuel Gustav Van-Dyck, John Holcombe, Edward C. Gunzel
  • Publication number: 20160022918
    Abstract: A container having a barrier layer is provided. The container may be of thermoplastic and the barrier may inhibit materials from leaching from the thermoplastic material or from extraction of compounds from medicants by the thermoplastic. A process is also described that allows for molding thin barrier layers as container lines and for forming thermoplastic containers with barrier liners.
    Type: Application
    Filed: October 6, 2015
    Publication date: January 28, 2016
    Inventor: Edward C. Gunzel
  • Patent number: 9215900
    Abstract: Laminates are described having a durable outer film surface for use in making lightweight liquidproof articles, including articles of apparel, such as outerwear garments. A method of making the laminate and a lightweight outerwear garment having an abrasion resistant exterior film surface is described.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: December 22, 2015
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Matthew A. Johnson, Edward C. Gunzel
  • Patent number: 9215897
    Abstract: Laminates are described having a durable outer film surface for use in making lightweight liquidproof articles of apparel, such as outerwear garments. A method of making the laminate and a lightweight outerwear garment having an abrasion resistant exterior film surface is described.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: December 22, 2015
    Assignee: W.L. Gore & Associates, Inc.
    Inventors: Matthew A. Johnson, Edward C. Gunzel
  • Patent number: 9089172
    Abstract: Laminates are described having a durable outer film surface for use in making lightweight liquidproof articles of apparel, such as outerwear garments. A method of making the laminate and a lightweight outerwear garment having an abrasion resistant exterior film surface is described.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 28, 2015
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Matthew A. Johnson, Edward C. Gunzel