Patents by Inventor Sneha Swaminathan
Sneha Swaminathan 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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Publication number: 20220249997Abstract: Surface modified filter media, including surface modified filter media having enhanced performance characteristics, are provided. In some embodiments, a filter media may comprise two or more layers designed to enhance fluid separation efficiency. One or more of the layers may have at least a portion of a surface that is modified to alter and/or enhance the wettability of the surface with respect to a particular fluid. In certain embodiments involving a filter media including more than one surface modified layer, at least one surface modified layer may have a greater air permeability and/or mean flow pore size than that of another surface modified layer. Such a configuration of layers may result in the media having enhanced fluid separation properties compared to filter media that do not include such modified layers or configuration of layers, all other factors being equal. The filter media may be well-suited for a variety of applications, including filtering fuel, air, and lube oil.Type: ApplicationFiled: March 7, 2022Publication date: August 11, 2022Applicant: Hollingsworth & Vose CompanyInventors: Sneha Swaminathan, Howard Yu, Siqiang Zhu
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Patent number: 11266941Abstract: Surface modified filter media, including surface modified filter media having enhanced performance characteristics, are provided. In some embodiments, a filter media may comprise two or more layers designed to enhance fluid separation efficiency. One or more of the layers may have at least a portion of a surface that is modified to alter and/or enhance the wettability of the surface with respect to a particular fluid. In certain embodiments involving a filter media including more than one surface modified layer, at least one surface modified layer may have a greater air permeability and/or mean flow pore size than that of another surface modified layer. Such a configuration of layers may result in the media having enhanced fluid separation properties compared to filter media that do not include such modified layers or configuration of layers, all other factors being equal. The filter media may be well-suited for a variety of applications, including filtering fuel, air, and lube oil.Type: GrantFiled: July 19, 2019Date of Patent: March 8, 2022Assignee: Hollingsworth & Vose CompanyInventors: Sneha Swaminathan, Howard Yu, Siqiang Zhu
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Patent number: 11247182Abstract: Fiber webs which are used in filter media are described herein. In some embodiments, the fiber webs include fibrillated fibers and optionally non-fibrillated fibers, amongst other optional components (e.g., binder resin). In some embodiments, the fiber webs include limited amounts of, or no, glass fiber. The respective characteristics and amounts of the fibrillated fibers are selected to impart desirable properties including mechanical properties and filtration properties (e.g., dust holding capacity and efficiency), amongst other benefits.Type: GrantFiled: April 30, 2019Date of Patent: February 15, 2022Assignee: Hollingsworth & Vose CompanyInventors: Howard Yu, Sneha Swaminathan
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Publication number: 20220023784Abstract: Filter media comprising polyethersulfone, related components, and related methods are generally described.Type: ApplicationFiled: July 23, 2020Publication date: January 27, 2022Applicant: Hollingsworth & Vose CompanyInventors: Ibrahim Hassounah, Narendiran Vitchuli, Abdoulaye Doucouré, Sneha Swaminathan
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Publication number: 20210370208Abstract: Filter media, including those suitable for hydraulic, fuel, HVAC, HEPA, and/or other applications, and related methods are provided. In some embodiments, a filter media described herein may include a layer (e.g., a fine fiber layer) comprising a plurality of fibers comprising polyamide 11. In some embodiments, a filter media comprises a layer (e.g., a fine fiber layer) comprising a plurality of electrospun fibers comprising a material having one or more advantageous properties. In an exemplary set of embodiments, the plurality of fibers comprise polyamide 11 (e.g., Nylon 11). In some embodiments, the polyamide 11 fibers are produced by an electrospinning process.Type: ApplicationFiled: May 27, 2020Publication date: December 2, 2021Applicant: Hollingsworth & Vose CompanyInventors: Praveen Kumar Yegya-Raman, Sneha Swaminathan
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Publication number: 20200368654Abstract: Filter media comprising one or more layers comprising nanofibers are generally described. In some embodiments, a filter media comprises a layer comprising nanofibers. The nanofibers may comprise an elastomer, a multiblock copolymer, and/or a multiblock copolymer that is an elastomer.Type: ApplicationFiled: May 24, 2019Publication date: November 26, 2020Applicant: Hollingsworth & Vose CompanyInventors: Keith Higginson, Sneha Swaminathan
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Publication number: 20200346172Abstract: Fiber webs which are used in filter media are described herein. In some embodiments, the fiber webs include fibrillated fibers and optionally non-fibrillated fibers, amongst other optional components (e.g., binder resin). In some embodiments, the fiber webs include limited amounts of, or no, glass fiber. The respective characteristics and amounts of the fibrillated fibers are selected to impart desirable properties including mechanical properties and filtration properties (e.g., dust holding capacity and efficiency), amongst other benefits.Type: ApplicationFiled: July 15, 2020Publication date: November 5, 2020Applicant: Hollingsworth & Vose CompanyInventors: Howard Yu, Sneha Swaminathan
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Publication number: 20200238226Abstract: Fiber webs which are used in filter media are described herein. In some embodiments, the fiber webs include fibrillated fibers and optionally non-fibrillated fibers, amongst other optional components (e.g., binder resin). In some embodiments, the fiber webs include limited amounts of, or no, glass fiber. The respective characteristics and amounts of the fibrillated fibers are selected to impart desirable properties including mechanical properties and filtration properties (e.g., dust holding capacity and efficiency), amongst other benefits.Type: ApplicationFiled: April 20, 2020Publication date: July 30, 2020Applicant: Hollingsworth & Vose CompanyInventors: Howard Yu, Sneha Swaminathan
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Publication number: 20200054975Abstract: Filter media comprising a non-woven web including one or more binder components are provided. In some embodiments, the non-woven web comprises fibers and one or more binder components (e.g., monocomponent binder fibers, binder particles). The binder component(s) may impart strength and/or durability to the non-woven web without adversely affecting one or more filtration properties (e.g., air permeability, efficiency, dust holding capacity). In such cases, the non-woven web may function as both a filtration and support layer. For instance, the non-woven web may trap particulate matter and allow the filter media to be pleated and/or utilized in a filter element without the need for additional support structures. Filter media described herein may be particularly well-suited for applications such as fuel filtration, hydraulic filtration, lube filtration, gas turbine filtration, air filtration, and water filtration, though the media may also be used in other applications.Type: ApplicationFiled: August 20, 2018Publication date: February 20, 2020Applicant: Hollingsworth & Vose CompanyInventors: Howard Yu Belmont, Svetlana Krupnikov, Sneha Swaminathan
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Publication number: 20200009488Abstract: Surface modified filter media, including surface modified filter media having enhanced performance characteristics, are provided. In some embodiments, a filter media may comprise two or more layers designed to enhance fluid separation efficiency. One or more of the layers may have at least a portion of a surface that is modified to alter and/or enhance the wettability of the surface with respect to a particular fluid. In certain embodiments involving a filter media including more than one surface modified layer, at least one surface modified layer may have a greater air permeability and/or mean flow pore size than that of another surface modified layer. Such a configuration of layers may result in the media having enhanced fluid separation properties compared to filter media that do not include such modified layers or configuration of layers, all other factors being equal. The filter media may be well-suited for a variety of applications, including filtering fuel, air, and lube oil.Type: ApplicationFiled: July 19, 2019Publication date: January 9, 2020Applicant: Hollingsworth & Vose CompanyInventors: Sneha Swaminathan, Howard Yu, Siqiang Zhu
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Publication number: 20190388847Abstract: Fiber webs which are used in filter media are described herein. In some embodiments, the fiber webs include fibrillated fibers and optionally non-fibrillated fibers, amongst other optional components (e.g., binder resin). In some embodiments, the fiber webs include limited amounts of, or no, glass fiber. The respective characteristics and amounts of the fibrillated fibers are selected to impart desirable properties including mechanical properties and filtration properties (e.g., dust holding capacity and efficiency), amongst other benefits.Type: ApplicationFiled: April 30, 2019Publication date: December 26, 2019Applicant: Hollingsworth & Vose CompanyInventors: Howard Yu, Sneha Swaminathan
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Publication number: 20190336888Abstract: Surface modified filter media, including surface modified filter media having enhanced performance characteristics, are provided. In some embodiments, a filter media may comprise two or more layers designed to enhance fluid separation efficiency. One or more of the layers may have at least a portion of a surface that is modified to alter and/or enhance the wettability of the surface with respect to a particular fluid. In certain embodiments involving a filter media including more than one surface modified layer, at least one surface modified layer may have a greater air permeability and/or mean flow pore size than that of another surface modified layer. Such a configuration of layers may result in the media having enhanced fluid separation properties compared to filter media that do not include such modified layers or configuration of layers, all other factors being equal. The filter media may be well-suited for a variety of applications, including filtering fuel, air, and lube oil.Type: ApplicationFiled: December 20, 2018Publication date: November 7, 2019Applicant: Hollingsworth & Vose CompanyInventors: Sneha Swaminathan, Howard Yu
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Patent number: 10399024Abstract: Surface modified filter media, including surface modified filter media having enhanced performance characteristics, are provided. In some embodiments, a filter media may comprise two or more layers designed to enhance fluid separation efficiency. One or more of the layers may have at least a portion of a surface that is modified to alter and/or enhance the wettability of the surface with respect to a particular fluid. In certain embodiments involving a filter media including more than one surface modified layer, at least one surface modified layer may have a greater air permeability and/or mean flow pore size than that of another surface modified layer. Such a configuration of layers may result in the media having enhanced fluid separation properties compared to filter media that do not include such modified layers or configuration of layers, all other factors being equal. The filter media may be well-suited for a variety of applications, including filtering fuel, air, and lube oil.Type: GrantFiled: November 12, 2015Date of Patent: September 3, 2019Assignee: Hollingsworth & Vose CompanyInventors: Sneha Swaminathan, Howard Yu, Siqiang Zhu
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Publication number: 20190263717Abstract: Fiber webs that may be coated and used in filter media are provided. In some embodiments, the fiber web is a non-woven web that is coated with a resin including at least two components (e.g., a first component and a second component) that may react with one another to form a copolymer. In some embodiments, the coated fiber web may be sufficiently self-supporting, durable, and strong, such that filter media and/or elements formed of the web do not require additional support structures (e.g., a scrim).Type: ApplicationFiled: March 1, 2019Publication date: August 29, 2019Applicant: Hollingsworth & Vose CompanyInventors: Richard O. Angus, JR., Cameron Thomson, Sneha Swaminathan
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Patent number: 10322380Abstract: Fiber webs which are used in filter media are described herein. In some embodiments, the fiber webs include fibrillated fibers and optionally non-fibrillated fibers, amongst other optional components (e.g., binder resin). In some embodiments, the fiber webs include limited amounts of, or no, glass fiber. The respective characteristics and amounts of the fibrillated fibers are selected to impart desirable properties including mechanical properties and filtration properties (e.g., dust holding capacity and efficiency), amongst other benefits.Type: GrantFiled: October 18, 2016Date of Patent: June 18, 2019Assignee: Hollingsworth & Vose CompanyInventors: Howard Yu, Sneha Swaminathan
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Patent number: 10195542Abstract: Surface modified filter media, including surface modified filter media having enhanced performance characteristics, are provided. In some embodiments, a filter media may comprise two or more layers designed to enhance fluid separation efficiency. One or more of the layers may have at least a portion of a surface that is modified to alter and/or enhance the wettability of the surface with respect to a particular fluid. In certain embodiments involving a filter media including more than one surface modified layer, at least one surface modified layer may have a greater air permeability and/or mean flow pore size than that of another surface modified layer. Such a configuration of layers may result in the media having enhanced fluid separation properties compared to filter media that do not include such modified layers or configuration of layers, all other factors being equal. The filter media may be well-suited for a variety of applications, including filtering fuel, air, and lube oil.Type: GrantFiled: May 15, 2014Date of Patent: February 5, 2019Assignee: Hollingsworth & Vose CompanyInventors: Sneha Swaminathan, Howard Yu
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Publication number: 20170128892Abstract: Fiber webs which are used in filter media are described herein. In some embodiments, the fiber webs include fibrillated fibers and optionally non-fibrillated fibers, amongst other optional components (e.g., binder resin). In some embodiments, the fiber webs include limited amounts of, or no, glass fiber. The respective characteristics and amounts of the fibrillated fibers are selected to impart desirable properties including mechanical properties and filtration properties (e.g., dust holding capacity and efficiency), amongst other benefits.Type: ApplicationFiled: October 18, 2016Publication date: May 11, 2017Applicant: Hollingsworth & Vose CompanyInventors: Howard Yu, Sneha Swaminathan
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Publication number: 20160361674Abstract: Filter media comprising fine staple fibers and related components, systems, and methods associated therewith are provided. In some embodiments, a filter media may include a layer (e.g., a wet laid layer) comprising polymeric staple fibers having a relatively small average diameter (e.g., less than or equal to about 1 micron). The polymeric staple fiber layer may be designed to impart desirable properties to the filter media, such as a high particulate efficiency and/or fluid separation efficiency, while having relatively minimal or no adverse effects on one or more properties of the filter media that are important for a given application. The filter media, described herein, may be particularly well-suited for a variety of applications.Type: ApplicationFiled: June 9, 2016Publication date: December 15, 2016Applicant: Hollingsworth & Vose CompanyInventors: Sneha Swaminathan, Svetlana Krupnikov
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Patent number: 9511330Abstract: Fiber webs which are used in filter media are described herein. In some embodiments, the fiber webs include fibrillated fibers and optionally non-fibrillated fibers, amongst other optional components (e.g., binder resin). In some embodiments, the fiber webs include limited amounts of, or no, glass fiber. The respective characteristics and amounts of the fibrillated fibers are selected to impart desirable properties including mechanical properties and filtration properties (e.g., dust holding capacity and efficiency), amongst other benefits.Type: GrantFiled: December 19, 2013Date of Patent: December 6, 2016Assignee: Hollingsworth & Vose CompanyInventors: Howard Yu, Sneha Swaminathan
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Publication number: 20160166953Abstract: Filter media comprising fine staple fibers and related components, systems, and methods associated therewith are provided. In some embodiments, a filter media may include a layer (e.g., a wet laid layer) comprising polymeric staple fibers having a relatively small average diameter (e.g., less than or equal to about 1 micron). The polymeric staple fiber layer may be designed to impart desirable properties to the filter media, such as a high particulate efficiency and/or fluid separation efficiency, while having relatively minimal or no adverse effects on one or more properties of the filter media that are important for a given application. The filter media, described herein, may be particularly well-suited for a variety of applications.Type: ApplicationFiled: December 15, 2014Publication date: June 16, 2016Applicant: Hollingsworth & Vose CompanyInventors: Sneha Swaminathan, Svetlana Krupnikov