Patents Assigned to Filligent Limited
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Patent number: 8678002Abstract: A facial mask for use in decreasing the transmission of one or more than one human pathogen to and from a human wearer of the facial mask, the facial mask comprising a facepiece; where the facepiece comprises three or more than three layers; where one or more than one of the three or more than three layers comprises a fabric comprising one or more than one binding substance comprising one or more than one human pathogen binding group for chemically attaching the human pathogen to the binding substance; where the fabric further comprises one or more than one type of multivalent metallic ion or metallic salt; and where one or more than one of the three or more than three layers comprises a heat-moldable fabric.Type: GrantFiled: June 25, 2008Date of Patent: March 25, 2014Assignee: Filligent LimitedInventors: Neal G. Stewart, Lok Yuen Lo, Francis Chi Nan Lau, Dacey J. Ryan, Reid W. von Borstel
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Publication number: 20120272967Abstract: A facemask structure for inactivating pathogens includes a facial contact layer that is benign to human skin followed by a subsequent interior layer and an outer layer including an anti-pathogenic material. In this manner, active, isolated anti-pathogen layers can be provided in a multilayer mask structure. For example, an important anti-viral mask structure uses one or a mixture of acids to create a low pH environment on the first inner (or outer hydrophilic layer) so that the virus laden droplets from, e.g., a sneeze, are absorbed into and away from the surface. Thus, for an infected wearer, two or more hydrophilic layers on the interior of the mask can protect the environment from an infected wearer.Type: ApplicationFiled: March 2, 2012Publication date: November 1, 2012Applicant: Filligent LimitedInventors: Neal George Stewart, Melissa Mowbray-D' Arbela, Dacey J. Ryan
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Publication number: 20100330140Abstract: A facial mask for use in decreasing the transmission of one or more than one human pathogen to and from a human wearer of the facial mask, the facial mask comprising a facepiece; where the facepiece comprises three or more than three layers; where one or more than one of the three or more than three layers comprises a fabric comprising one or more than one binding substance comprising one or more than one human pathogen binding group for chemically attaching the human pathogen to the binding substance; where the fabric further comprises one or more than one type of multivalent metallic ion or metallic salt; and where one or more than one of the three or more than three layers comprises a heat-moldable fabric.Type: ApplicationFiled: June 25, 2008Publication date: December 30, 2010Applicant: FILLIGENT LIMITEDInventors: Neal G. Stewart, Lok Yuen Lo, Francis Chi Nan Lau, Dacey J. Ryan, Reid W. von Borstel
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Publication number: 20090025736Abstract: A composition useful for treating the substrate of a tobacco smoke filter. A tobacco smoke filter comprising one or more than one free porphyrin or one or more than one free metal phthalocyanine. A seamless tobacco smoke filter (80, 90) comprising a first segment and a second segment. A device (110) for making a tobacco smoke filter from tobacco smoke filter substrate comprising a rod maker machine (112) and an applicator (120) for applying one or more than one additive intermittently to the substrate in a plurality of spaced bands.Type: ApplicationFiled: April 17, 2007Publication date: January 29, 2009Applicant: FILLIGENT LIMITEDInventors: Neal G. Stewart, Robert D. Makepeace, Reid W. von Borstel
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Patent number: 7104265Abstract: A tobacco smoke filter comprising one or more than one metal phthalocyanine, such as a copper phthalocyanine or an iron phthalocyanine, and further comprising one or more than one polycationic polymer.Type: GrantFiled: March 17, 2004Date of Patent: September 12, 2006Assignee: Filligent LimitedInventor: Reid Von Borstel
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Patent number: 6792953Abstract: A tobacco smoke filter a copper-containing porphyrin or an iron analog of C.I. Reactive Blue 21 dye. A method of making a first tobacco smoke filter segment, comprising the steps of, first, providing one or more than one substance; producing a mixture of cellulose fiber and the substance; heating the mixture for a sufficient time at one or more than one temperature sufficient to covalently link the substance to the cellulose fiber; and forming the cellulose fiber with covalently bound substance into the first tobacco smoke filter segment. The substance can be a copper-containing porphyrin or an iron analog of C.I. Reactive Blue 21 dye.Type: GrantFiled: March 10, 2003Date of Patent: September 21, 2004Assignee: Filligent LimitedInventors: Craig A. Lesser, Reid W. Von Borstel
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Patent number: 6530377Abstract: A tobacco smoke filter comprising a porous substrate comprising dry water and a porphyrin dispersed therein. The porous substrate can further comprise microcapsules. The microcapsules can comprise one or more substances selected from the group consisting of chlorophyllin, methylcellulose, sodium pyroglutamate and a vegetable oil. The porous substrate can further comprise sodium pyroglutamate.Type: GrantFiled: November 20, 2000Date of Patent: March 11, 2003Assignee: Filligent LimitedInventors: Craig Lesser, Reid W. Von Borstel