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Class Information
Number: 428/304.4
Name: Stock material or miscellaneous articles > Web or sheet containing structurally defined element or component > Composite having voids in a component (e.g., porous, cellular, etc.)
Description: Subject matter which consists of at least two components, at least one of which has internal spaces either containing at least a gas and/or devoid of identifiable contents.










Sub-classes under this class:

Class Number Class Name Patents
428/312.2 Inorganic matrix in void-containing component 282
428/316.6 Plural void-containing components 1,042
428/313.3 Preformed hollow element-containing 156
428/314.2 Void shape specified (e.g., crushed, flat, round, etc.) 190
428/317.9 Void-containing component contains also a solid fiber or solid particle 949
428/311.11 Void-containing component has a continuous matrix of fibers only (e.g., porous paper, etc.) 162
428/306.6 Void-containing component partially impregnated with adjacent component 347
428/314.4 Voids specified as closed 375
428/315.5 Voids specified as micro 741
428/305.5 With chemically effective material or specified gas other than air, n, or carbon dioxide in void-containing component 287
428/317.1 With component specified as adhesive or bonding agent 503
428/310.5 With gradual property change within a component 203
428/309.9 With internal element bridging layers, nonplanar interface between layers, or intermediate layer of commingled adjacent foam layers 232
428/318.4 With nonvoid component of specified composition 647


Patents under this class:

Patent Number Title Of Patent Date Issued
8710110 Methods of producing the membranes and the uses of membranes as battery separator films Apr. 29, 2014
8709590 Hot-press cushion material and manufacturing method of the same Apr. 29, 2014
8709588 Optical article comprising a temporary anti-fogging coating with improved durability Apr. 29, 2014
8691375 Material for packaging electronic components Apr. 8, 2014
8691363 Decorative and protective nonslip covering of multiple uses and the production process and composition thereof Apr. 8, 2014
8691098 Porous web, particularly for filtration of biological fluids Apr. 8, 2014
8691007 Low thermal transmission building material Apr. 8, 2014
8673439 Article undergoing stimulus-responsive deformation and vehicle part using the same Mar. 18, 2014
8668980 Filled polyimide films and coverlays comprising such films Mar. 11, 2014
8668974 System and method for primarily erecting curvilinear buildings using a plurality of interconnected structural tubes/sandwich panels Mar. 11, 2014
8663868 Microporous PVDF films Mar. 4, 2014
8658288 Method for manufacturing a porous device with restrictive layer and structure thereof Feb. 25, 2014
8658277 Porous inorganic/organic hybrid materials with ordered domains for chromatographic separations and processes for their preparation Feb. 25, 2014
8654502 Apparatus, a method for establishing a conductive pattern on a planar insulating substrate, the planar insulating substrate and a chipset thereof Feb. 18, 2014
8652621 Item with at least one thermoprogrammable switching section for applications in contact with materials having high heat transfer coefficients Feb. 18, 2014
8648123 Hydrofluoropropene blowing agents for thermoplastics Feb. 11, 2014
8642164 Composite substrates with predetermined porosities Feb. 4, 2014
8637145 Ultra-light sound insulator Jan. 28, 2014
8637144 Expandable TFE copolymers, method of making, and porous, expended articles thereof Jan. 28, 2014
8637141 Coatings Jan. 28, 2014
8632877 Ultra-thin photo-polymer coatings and uses thereof Jan. 21, 2014
8628843 Composite PTFE materials and applications thereof Jan. 14, 2014
8622223 Membrane assemblies and methods of making and using the same Jan. 7, 2014
8618007 Fused cast refractory product with a high alumina content Dec. 31, 2013
8617699 Manufacturing and assembly of roofing components Dec. 31, 2013
8613999 Laser-engraveable compositions and flexographic printing precursors comprising organic porous particles Dec. 24, 2013
8609235 Porous ceramic material and method of producing the same Dec. 17, 2013
8603622 Absorbent structure Dec. 10, 2013
8603621 Writing kit with plastic sheets Dec. 10, 2013
8603614 Porous friction material with nanoparticles of friction modifying material Dec. 10, 2013
8603601 Base for turf system Dec. 10, 2013
8603225 Aluminum naphthalenedicarboxylate as porous metal-organic framework material Dec. 10, 2013
8598256 Multifunctional biocomposite additive compositions and methods Dec. 3, 2013
8597778 Porous formed article and method for production thereof Dec. 3, 2013
8597754 Base for turf system Dec. 3, 2013
8592494 Styrene-modified linear low-density polyethylene-based resin beads, styrene-modified linear low-density polyethylene-based expandable resin beads, production method therefor, pre-expanded bead Nov. 26, 2013
8586177 Structural damage repair elements and kit Nov. 19, 2013
8586166 Ceramic sintered body and ceramic filter Nov. 19, 2013
8574710 Anti-reflective coatings comprising ordered layers of nanowires and methods of making and using the same Nov. 5, 2013
8569190 Waterproof/breathable moisture transfer liner for snowboard boots, alpine boots, hiking boots and the like Oct. 29, 2013
8568844 Pre-applied protective jacketing construction for pipe and block insulation Oct. 29, 2013
8563124 Carbon materials with interconnected pores Oct. 22, 2013
8563122 Thermoplastic architectural composite laminate materials and associated methods of manufacture Oct. 22, 2013
8557894 Water-triggered coloring or color changing indicator Oct. 15, 2013
8557375 Thermoplastic film for airbag covers Oct. 15, 2013
8550024 Three-layer rotomoulded motorboats Oct. 8, 2013
8545974 Flame retardant EMI shields Oct. 1, 2013
8545973 Sealable containers Oct. 1, 2013
8535794 Device, especially sporting equipment for use in surfing or similar activities, and a method for producing fiber composites Sep. 17, 2013
8530044 Hyperbranched oligomeric phosphonates and compositions including the same Sep. 10, 2013











 
 
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