Patents by Inventor Jeremy Andrew Collingwood

Jeremy Andrew Collingwood 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).

  • ELECTRET-CONTAINING FILTER MEDIA
    Publication number: 20220126226
    Abstract: Filter media, such as electret-containing filtration media for filtering gas streams (e.g., air), are described herein. In some embodiments, the filter media may be designed to have desirable properties such as stable filtration efficiency over the lifetime of the filter media, increased normalized gamma, relatively low pressure drop (i.e. resistance), and/or relatively low basis weight. In certain embodiments, the filter media may be a composite of two or more types of fiber layers where each layer may be designed to enhance its function without substantially negatively impacting the performance of another layer of the media. For example, one layer of the media may be designed to have a relatively low basis weight and/or a relatively high air permeability, and another layer of the media may be designed to have stable filtration efficiency and/or a relatively high efficiency throughout the filter media's lifetime.
    Type: Application
    Filed: November 3, 2021
    Publication date: April 28, 2022
    Applicant: Hollingsworth & Vose Company
    Inventors: Syed Gulrez, Jeremy Andrew Collingwood, Sudheer Jinka, Bruce Smith, Mark A. Gallimore
  • ELECTRET-CONTAINING FILTER MEDIA
    Publication number: 20180243674
    Abstract: Filter media, such as electret-containing filtration media for filtering gas streams (e.g., air), are described herein. In some embodiments, the filter media may be designed to have desirable properties such as stable filtration efficiency over the lifetime of the filter media, increased normalized gamma, relatively low pressure drop (i.e. resistance), and/or relatively low basis weight. In certain embodiments, the filter media may be a composite of two or more types of fiber layers where each layer may be designed to enhance its function without substantially negatively impacting the performance of another layer of the media. For example, one layer of the media may be designed to have a relatively low basis weight and/or a relatively high air permeability, and another layer of the media may be designed to have stable filtration efficiency and/or a relatively high efficiency throughout the filter media's lifetime.
    Type: Application
    Filed: February 21, 2018
    Publication date: August 30, 2018
    Applicant: Hollingsworth & Vose Company
    Inventors: Syed Gulrez, Jeremy Andrew Collingwood, Sudheer Jinka, Bruce Smith, Mark A. Gallimore
  • Filter materials and methods for the production thereof
    Patent number: 6811594
    Abstract: There is disclosed an electrostatically charged filter material comprising a blend of polyester fibers and electrostatically chargeable fibers of at least one other kind.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: November 2, 2004
    Assignee: Hollingsworth & Vose Air Filtration Limited
    Inventors: Jeremy Andrew Collingwood, John Gordon
  • Filter materials and methods for the production thereof
    Patent number: 6623548
    Abstract: An electrostatically charged filter material including a blend of polypropylene fibres and one selected from the group consisting of: halogen free acrylic fibres; polyvinyl chloride fibers or a mixture of halogen free acrylic fibres and polyvinyl chloride fibres.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: September 23, 2003
    Assignee: Hollingsworth & Vose Air Filtration Limited
    Inventors: John Gordon, Jeremy Andrew Collingwood, Martyn Peter Kennaugh