Patents by Inventor Katherine A. S. Graham
Katherine A. S. Graham 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: 20130302722Abstract: The present invention is an electrochemical device subassembly that includes a membrane electrode assembly and a gasket. The membrane electrode assembly includes an electrolyte membrane having a first major surface, a second major surface opposite the first major surface, and a peripheral edge. The gasket is disposed adjacent the first major surface of the electrolyte membrane at the peripheral edge, and has a plurality of replicated structures that extend greater than about 250 micrometers from a surface of the gasket.Type: ApplicationFiled: July 12, 2013Publication date: November 14, 2013Inventors: Paul M. BOUCHER, Michael A. YANDRASITS, Katherine A.S. GRAHAM, Eric J. HANSON
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Patent number: 8546045Abstract: An electrochemical device subassembly is provided that includes a membrane electrode assembly and a gasket. The membrane electrode assembly includes an electrolyte membrane having a first major surface, a second major surface opposite the first major surface, and a peripheral edge. The gasket is disposed adjacent the first major surface of the electrolyte membrane at the peripheral edge, and has a plurality of replicated structures that extend greater than about 250 micrometers from a surface of the gasket.Type: GrantFiled: September 19, 2005Date of Patent: October 1, 2013Assignee: 3M Innovative Properties CompanyInventors: Paul M. Boucher, Michael A. Yandrasits, Katherine A. S. Graham, Eric J. Hanson
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Patent number: 8034431Abstract: There is provided a laminate of a thermoplastic backing to a fibrous web. This laminate, for example, could be used as a loop laminate for use in a hook and loop fastening system or an intermittently bonded elastic fibrous laminate. The laminate comprises a thermoplastic backing layer, having a first face and a second face. The backing layer has a plurality of projections extending from at least the first face of the backing. A fibrous web is attached to the backing at the location of at least some of the projections. The thermoplastic material of the backing, at the location of the projections, penetrates into the fibrous web encapsulating at least in part fibers of the fibrous web. The fibrous web preferably penetrates into at least some of the projections. The fibrous web is generally not attached, or very lightly attached, to the backing layer over at least some portion of the distance between adjacent projections.Type: GrantFiled: January 25, 2006Date of Patent: October 11, 2011Assignee: 3M Innovative Properties CompanyInventors: Jayshree Seth, Leigh E. Wood, Ronald W. Ausen, Randall L. Alberg, Dennis L. Becker, Katherine A. S. Graham, Byron M. Jackson, Janet A. Venne
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Patent number: 7883769Abstract: The invention is directed in part to an article that includes a polymer foam having a surface with surface microstructures, the surface microstructures have at least one extent or dimension of about 10 microns or more, preferably 50 microns or more. A maximum extent (unless it is a continuous rib-like structure) the microstructure is about 300 microns or less, preferably 200 microns or less, and generally a maximum height of 1000 microns or less, preferably 750 microns or less and a minimum height of 200 microns or more, preferably 300 microns or more. The foamed article may be provided in a variety of shapes, including a rod, a cylinder, a sheet, etc. In a preferred embodiment where the foam is provided in the form of a sheet, the foam has a pair of major surfaces, one or both of which can be provided with surface microstructures.Type: GrantFiled: June 18, 2003Date of Patent: February 8, 2011Assignee: 3M Innovative Properties CompanyInventors: Jayshree Seth, Christopher K. Haas, Ravi K. Sura, Katherine A. S. Graham, Janet A. Venne
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Publication number: 20110008570Abstract: The invention is directed in part to an article that includes a polymer foam having a surface with surface microstructures, the surface microstructures have at least one extent or dimension of about 10 microns or more, preferably 50 microns or more. A maximum extent (unless it is a continuous rib-like structure) the microstructure is about 300 microns or less, preferably 200 microns or less, and generally a maximum height of 1000 microns or less, preferably 750 microns or less and a minimum height of 200 microns or more, preferably 300 microns or more. The foamed article may be provided in a variety of shapes, including a rod, a cylinder, a sheet, etc. In a preferred embodiment where the foam is provided in the form of a sheet, the foam has a pair of major surfaces, one or both of which can be provided with surface microstructures.Type: ApplicationFiled: September 23, 2010Publication date: January 13, 2011Inventors: Jayshree Seth, Christopher K. Haas, Ravi K. Sura, Katherine A.S. Graham, Janet A. Venne
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Publication number: 20090047855Abstract: There is provided an elastic nonwoven laminate. The elastic layer is laminated along at least one face to an extensible nonwoven web via strand spacer elements that extend in a first direction of the nonwoven web providing for a strengthening effect in the first direction. The elastic layer is attached to the extensible nonwoven web without any significant bonding of the extensible nonwoven web to the elastic layer between the spacer elements wherein the elastic nonwoven laminate is easily extensible in a second direction without activation.Type: ApplicationFiled: August 16, 2007Publication date: February 19, 2009Inventors: Jayshree Seth, Janet A. Venne, Katherine A.S. Graham
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Patent number: 7235202Abstract: The present invention concerns an extrusion formed reticulated web, mesh or netting including reticulated hook fasteners for use with hook and loop fasteners the polymer netting comprising two sets of strands at angles to each other. The first set of strands are a plurality of oriented (molecular orientation created by stretching) strands extending in a first direction and are generally mutually parallel and linear. The second set of strands are a plurality of substantially parallel strands attached only to a first face of the first set of oriented strands. The first set of oriented strands occupy a first planar cross-sectional area in the thickness direction of the formed netting. Said second set of oriented strands occupy a second planar cross-sectional area in the thickness direction of the formed netting. Preferably, these first and second planar cross-sectional areas are substantially mutually exclusive and are abutting.Type: GrantFiled: November 12, 2003Date of Patent: June 26, 2007Assignee: 3M Innovative Properties CompanyInventors: Jayshree Seth, Ronald W. Ausen, Janet A. Venne, Katherine A. S. Graham
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Publication number: 20040258902Abstract: The invention is directed in part to an article that includes a polymer foam having a surface with surface microstructures, the surface microstructures have at least one extent or dimension of about 10 microns or more, preferably 50 microns or more. A maximum extent (unless it is a continuous rib-like structure) the microstructure is about 300 microns or less, preferably 200 microns or less, and generally a maximum height of 1000 microns or less, preferably 750 microns or less and a minimum height of 200 microns or more, preferably 300 microns or more. The foamed article may be provided in a variety of shapes, including a rod, a cylinder, a sheet, etc. In a preferred embodiment where the foam is provided in the form of a sheet, the foam has a pair of major surfaces, one or both of which can be provided with surface microstructures.Type: ApplicationFiled: June 18, 2003Publication date: December 23, 2004Applicant: 3M Innovative Properties CompanyInventors: Jayshree Seth, Christopher K. Haas, Ravi K. Sura, Katherine A.S. Graham, Janet A. Venne
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Publication number: 20040170802Abstract: The present invention concerns an extrusion formed reticulated web, mesh or netting including reticulated hook fasteners for use with hook and loop fasteners the polymer netting comprising two sets of strands at angles to each other. The first set of strands are a plurality of oriented (molecular orientation created by stretching) strands extending in a first direction and are generally mutually parallel and linear. The second set of strands are a plurality of substantially parallel strands attached only to a first face of the first set of oriented strands. The first set of oriented strands occupy a first planar cross-sectional area in the thickness direction of the formed netting. Said second set of oriented strands occupy a second planar cross-sectional area in the thickness direction of the formed netting. Preferably, these first and second planar cross-sectional areas are substantially mutually exclusive and are abutting.Type: ApplicationFiled: November 12, 2003Publication date: September 2, 2004Inventors: Jayshree Seth, Ronald W. Ausen, Janet A. Venne, Katherine A. S. Graham