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Class Information
Number: 442/327
Name: Fabric (woven, knitted, or nonwoven textile or cloth, etc.) > Nonwoven fabric (i.e., nonwoven strand or fiber material)
Description: Subject matter wherein the fabric comprising a fabric assembly having structural integrity of continuous or discontinuous strands or fibers held together in random or ordered (e.g., parallel, etc.) array by (a) mechanical interlocking (e.g., as a consequence of needling or hydroentangling, etc.) in the case of thermoplastic fibers, heat-induced bonding (i.e., fusing), or (b) an impregnation or coating of a bonding agent.










Sub-classes under this class:

Class Number Class Name Patents
442/409 Autogenously bonded nonwoven fabric 317
442/415 Containing at least two chemically different strand or fiber materials 307
442/408 Hydroentangled nonwoven fabric 220
442/370 Including a foamed layer or component 219
442/376 Including a free metal or alloy constituent 65
442/412 Including a paper layer 100
442/413 Including a wood containing layer 72
442/381 Including an additional nonwoven fabric 494
442/366 Including parallel strand or fiber material within the nonwoven fabric 107
442/417 Including particulate material other than strand or fiber material 372
442/330 Including strand or fiber material precoated with other than free metal or alloy 29
442/361 Including strand or fiber material which is a monofilament composed of two or more polymeric materials in physically distinct relationship (e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.) or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material 368
442/334 Including strand or fiber material which is of specific structural definition 224
442/414 Including strand or fiber material which is stated to have specific attributes (e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous compositions, water solubility, heat shrinkability, etc.) 451
442/400 Melt-blown nonwoven fabric 349
442/402 Needled nonwoven fabric 196
442/328 Nonwoven fabric has an elastic quality 208
442/394 Nonwoven fabric with a preformed polymeric film or sheet 546
442/401 Spun-bonded nonwoven fabric 427


Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8679639 Extrusion coating composition Mar. 25, 2014
8668758 Trackified air filtration media and a self-supporting filter having improved stiffness and foldability Mar. 11, 2014
8662316 Filter medium for liquid filtration and process for producing the same Mar. 4, 2014
8663799 Polypropylene based fibers and nonwovens Mar. 4, 2014
8664129 Extensible nonwoven facing layer for elastic multilayer fabrics Mar. 4, 2014
8637414 Gradient density padding material and method of making same Jan. 28, 2014
8614154 Cellulose fibre based insulation material Dec. 24, 2013
8592674 Propylene based resin composition and use thereof Nov. 26, 2013
8592329 Vibrationally compressed glass fiber and/or other material fiber mats and methods for making the same Nov. 26, 2013
8551896 Tear resistant laminate Oct. 8, 2013
8551948 Albumin fibers and fabrics and methods of generating and using same Oct. 8, 2013
8546333 Albumin fibers and fabrics and methods of generating and using same Oct. 1, 2013
8513148 Thermally adhesive laminated nonwoven fabric Aug. 20, 2013
8501642 Nano-fiber compound solutions, emulsions and gels, production method thereof, Nano-fiber synthetic papers, and production method thereof Aug. 6, 2013
8481437 Thermally bound non-woven material Jul. 9, 2013
8461066 Nonwoven from bulked filament tow Jun. 11, 2013
8461254 Fluorosilicones and fluorine- and silicon-containing surface treatment agent Jun. 11, 2013
8450225 Structural composite material with improved acoustic and vibrational damping properties May. 28, 2013
8420557 Polyethylene-based, soft nonwoven fabric Apr. 16, 2013
8415263 Composite material using stretchable nonwoven fabric Apr. 9, 2013
8404342 Chitosan films with reduced shrinkage and laminates made therefrom Mar. 26, 2013
8403151 Nanofiber-containing membrane, a composite membrane, a process for producing them and their use Mar. 26, 2013
8383529 Cellulose nonwoven fabric Feb. 26, 2013
8367570 Mechanically strong absorbent non-woven fibrous mats Feb. 5, 2013
8361912 Hood, dash, firewall or engine cover liner Jan. 29, 2013
8282753 Articles and methods of masking or protecting a substrate Oct. 9, 2012
8268738 Polylactic acid fibers Sep. 18, 2012
8263506 Nonwoven lyocell fiber webs for filtration Sep. 11, 2012
8241729 Breathable garment having a fluid drainage layer Aug. 14, 2012
8241743 Dispersible nonwoven webs and methods of manufacture Aug. 14, 2012
8236715 Absorbent structure with improved water-absorbing material Aug. 7, 2012
8231950 Block copolymer derived from renewable materials and method for making such block copolymer Jul. 31, 2012
8231595 Stretchable laminates of nonwoven web(s) and elastic film Jul. 31, 2012
8226625 Stretchable laminates of nonwoven web(s) and elastic film Jul. 24, 2012
8226626 Stretchable laminates of nonwoven web(s) and elastic film Jul. 24, 2012
8221187 Molded non-woven fabrics and methods of molding Jul. 17, 2012
8211815 Absorbent structure having three-dimensional topography on upper and lower surfaces Jul. 3, 2012
8198360 (Meth)acrylic esters of poly(trimethylene ether) glycol and uses thereof Jun. 12, 2012
8192833 Material and method for providing insulation and drainage to a foundation wall Jun. 5, 2012
8187985 All purpose abrasive non-woven pad/scrubber and a process for its manufacture May. 29, 2012
8168281 Polyurea adhesive May. 1, 2012
8168003 Fiber comprising starch and a surfactant May. 1, 2012
8137808 Filing material and a method and a device for manufacturing it Mar. 20, 2012
8133824 Fabrics and articles of apparel including dimensionalized mesh and other fabrics Mar. 13, 2012
8133825 Dispersible wet wipes Mar. 13, 2012
8124550 Thermally bound non-woven material Feb. 28, 2012
8118902 Filtering medium and filter unit Feb. 21, 2012
8119237 Fibers made from copolymers of ethylene/.alpha.-olefins Feb. 21, 2012
8114794 Elastic, soft and punctiformly bound non-woven fabric provided with filler particles and method for production and the use thereof Feb. 14, 2012
8105411 Fluid filter system and method Jan. 31, 2012

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