Patents by Inventor William S. Freeman
William S. Freeman 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).
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Patent number: 11458427Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.Type: GrantFiled: November 11, 2020Date of Patent: October 4, 2022Assignee: Hollingsworth & Vose CompanyInventors: Stephen T. Cox, William S. Freeman, Abdoulaye Doucouré, John A. Wertz
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Publication number: 20210129061Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.Type: ApplicationFiled: November 11, 2020Publication date: May 6, 2021Applicant: Hollingsworth & Vose CompanyInventors: Stephen T. Cox, William S. Freeman, Abdoulaye Doucouré, John A. Wertz
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Patent number: 10874962Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.Type: GrantFiled: October 25, 2018Date of Patent: December 29, 2020Assignee: Hollingsworth & Vose CompanyInventors: Stephen T. Cox, William S. Freeman, Abdoulaye Doucouré, John A. Wertz
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Patent number: 10653986Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.Type: GrantFiled: October 5, 2015Date of Patent: May 19, 2020Assignee: Hollingsworth & Vose CompanyInventors: Stephen T. Cox, William S. Freeman, Mark S. Millar, John A. Wertz
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Publication number: 20190126177Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.Type: ApplicationFiled: October 25, 2018Publication date: May 2, 2019Applicant: Hollingsworth & Vose CompanyInventors: Stephen T. Cox, William S. Freeman, Abdoulaye Doucouré, John A. Wertz
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Patent number: 10155186Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.Type: GrantFiled: June 20, 2012Date of Patent: December 18, 2018Assignee: Hollingsworth & Vose CompanyInventors: Stephen T. Cox, William S. Freeman, Abdoulaye Doucoure, John A. Wertz
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Patent number: 9694306Abstract: Polymer compositions that may be used to form fibers for a fiber web are generally described. In some embodiments, certain properties of the polymer compositions (e.g., molecular weight distribution, melt flow index, melt elasticity, and/or melt toughness) may allow the formation of fiber webs having fine fibers and a relatively low amount of process defects. In some instances, these properties of the polymer composition may be achieved by combining two or more polymer components. Fiber webs formed using the polymer composition may have increased performance and/or better structural characteristics compared to fibers webs formed using a single polymer component.Type: GrantFiled: May 24, 2013Date of Patent: July 4, 2017Assignee: Hollingsworth & Vose CompanyInventors: Nagendra Anantharamaiah, William S. Freeman, Bruce Smith
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Publication number: 20160158677Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.Type: ApplicationFiled: October 5, 2015Publication date: June 9, 2016Applicant: Hollingsworth & Vose CompanyInventors: Stephen T. Cox, William S. Freeman, Mark S. Millar, John A. Wertz
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Patent number: 8986432Abstract: Filter media, as well as related assemblies, systems and methods. Filter media may contain one or more layers formed of a meltblown material.Type: GrantFiled: July 1, 2009Date of Patent: March 24, 2015Assignee: Hollingsworth & Vose CompanyInventors: John A. Wertz, David T. Healey, William S. Freeman, John L. Manns, Mark Rowlands
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Publication number: 20140346107Abstract: Polymer compositions that may be used to form fibers for a fiber web are generally described. In some embodiments, certain properties of the polymer compositions (e.g., molecular weight distribution, melt flow index, melt elasticity, and/or melt toughness) may allow the formation of fiber webs having fine fibers and a relatively low amount of process defects. In some instances, these properties of the polymer composition may be achieved by combining two or more polymer components. Fiber webs formed using the polymer composition may have increased performance and/or better structural characteristics compared to fibers webs formed using a single polymer component.Type: ApplicationFiled: May 24, 2013Publication date: November 27, 2014Applicant: Hollingsworth & Vose CompanyInventors: Nagendra Anantharamaiah, William S. Freeman, Bruce Smith
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Patent number: 8608817Abstract: Filter media, as well as related assemblies, systems and methods. Filter media may contain one or more layers formed of a meltblown material.Type: GrantFiled: November 7, 2008Date of Patent: December 17, 2013Assignee: Hollingsworth & Vose CompanyInventors: John A. Wertz, David Thomas Healey, William S. Freeman, John L. Manns, Mark Rowlands
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Publication number: 20120318754Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.Type: ApplicationFiled: June 20, 2012Publication date: December 20, 2012Applicant: Hollingsworth & Vose CompanyInventors: Stephen T. Cox, William S. Freeman, Abdoulaye Doucoure, John A. Wertz
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Publication number: 20120152824Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.Type: ApplicationFiled: December 17, 2010Publication date: June 21, 2012Applicant: Hollingsworth & Vose CompanyInventors: Stephen T. Cox, William S. Freeman
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Publication number: 20120152821Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.Type: ApplicationFiled: December 17, 2010Publication date: June 21, 2012Applicant: Hollingsworth & Vose CompanyInventors: Stephen T. Cox, William S. Freeman, Mark S. Millar
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Publication number: 20110147976Abstract: Filter media, as well as related assemblies, systems and methods. Filter media may contain one or more layers formed of a meltblown material.Type: ApplicationFiled: December 17, 2010Publication date: June 23, 2011Applicant: Hollingsworth & Vose CompanyInventors: John A. Wertz, David T. Healey, William S. Freeman
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Publication number: 20100000411Abstract: Filter media, as well as related assemblies, systems and methods. Filter media may contain one or more layers formed of a meltblown material.Type: ApplicationFiled: July 1, 2009Publication date: January 7, 2010Applicant: Hollingsworth & Vose CompanyInventors: John A. Wertz, David T. Healey, William S. Freeman, John L. Manns, Mark Rowlands
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Publication number: 20090120048Abstract: Filter media, as well as related assemblies, systems and methods. Filter media may contain one or more layers formed of a meltblown material.Type: ApplicationFiled: November 7, 2008Publication date: May 14, 2009Applicant: HOLLINGSWORTH & VOSE COMPANYInventors: John A. Wertz, David Thomas Healey, William S. Freeman, John L. Manns, Mark Rowlands
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Publication number: 20030129897Abstract: A forming panel having board with a release barrier of a substrate and a barrier/release layer secured to the board by an adhesive.Type: ApplicationFiled: October 17, 2002Publication date: July 10, 2003Inventors: Howell B. Eleazer, Allan M. Smith, Thomas E. Godfrey, William S. Freeman