Patents by Inventor Bernadette Heller

Bernadette Heller 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).

  • Asymmetric polytetrafluoroethylene composite having a macro-textured surface and method for making the same
    Patent number: 10987638
    Abstract: Polytetrafluoroethylene (PTFE) composite articles that have a macro textured surface. The composite articles include at least two different PTFE membranes in a layered or stacked configuration. The composite article has a macro textured surface characterized by a plurality of strands raised from the surface of the PTFE membrane. The strands may be formed of either interconnected nodes of PTFE or of at least one nodal mass of PTFE and have a length equal to or greater than about 1.5 mm. The macro textured surface provides a topography to the first PTFE membrane. The composite articles have a bubble point from about 3.0 psi to about 200 psi, a thickness from about 0.01 to about 3.0 mm, and a bulk density from about 0.01 g/cm3 to about 1.0 g/cm3.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: April 27, 2021
    Assignees: W. L. Gore & Associates, Inc., W. L. Gore & Associates GmbH
    Inventors: Donald L. Hollenbaugh, Jr., Bernadette Heller, Gopalan V. Balaji, Rebecca Buxbaum
  • Process for the production of a structured film
    Patent number: 9849629
    Abstract: The present invention relates to a process for the formation of a structured film, a structured film as such, an article comprising the structured film, a device for the continuous formation of such a structured film and a composite comprising the structured film.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: December 26, 2017
    Assignees: W. L. Gore & Associates GmbH, W. L. Gore & Associates, Inc.
    Inventors: Alexander Zaggl, Bernadette Heller, Andre Hartmann
  • Asymmetric Polytetrafluoroethylene Composite Having A Macro-Textured Surface and Method For Making The Same
    Publication number: 20160367947
    Abstract: Polytetrafluoroethylene (PTFE) composite articles that have a macro textured surface. The composite articles include at least two different PTFE membranes in a layered or stacked configuration. The composite article has a macro textured surface characterized by a plurality of strands raised from the surface of the PTFE membrane. The strands may be formed of either interconnected nodes of PTFE or of at least one nodal mass of PTFE and have a length equal to or greater than about 1.5 mm. The macro textured surface provides a topography to the first PTFE membrane. The composite articles have a bubble point from about 3.0 psi to about 200 psi, a thickness from about 0.01 to about 3.0 mm, and a bulk density from about 0.01 g/cm3 to about 1.0 g/cm3.
    Type: Application
    Filed: June 16, 2016
    Publication date: December 22, 2016
    Inventors: Donald L. Hollenbaugh, JR., Bernadette Heller, Gopalan V. Balaji, Rebecca Buxbaum
  • Process For The Production Of A Structured Film
    Publication number: 20160167291
    Abstract: The present invention relates to a process for the formation of a structured film, a structured film as such, an article comprising the structured film, a device for the continuous formation of such a structured film and a composite comprising the structured film.
    Type: Application
    Filed: August 21, 2014
    Publication date: June 16, 2016
    Inventors: Alexander Zagl, Bernadette Heller, Andre Hartmann