Assignee
HILLS INC
US·25 granted patents·3 pending applications·2,544 citations·filing 1994–2024
Top patents by PatentIndex Score
28 records- 0198US7160612B2Multi-component fibers having enhanced reversible thermal properties and methods of manufacturing thereofHILLS INC·Filed 2005·Granted Jan 9, 2007·122 cites·12 claims
- 0298US6551353B1Synthetic fibers for medical use and method of making the sameHILLS INC·Filed 1998·Granted Apr 22, 2003·245 cites·7 claims
- 0394US6861142B1Controlling the dissolution of dissolvable polymer components in plural component fibersHILLS INC·Filed 2003·Granted Mar 1, 2005·1.5k cites·21 claims
- 0494US6767498B1Process of making microfilamentsHILLS INC·Filed 1999·Granted Jul 27, 2004·108 cites·20 claims
- 0594US6338814B1Spunbond web formationHILLS INC·Filed 2000·Granted Jan 15, 2002·59 cites·61 claims
- 0692US7740777B2Method and apparatus for producing polymer fibers and fabrics including multiple polymer componentsHILLS INC·Filed 2007·Granted Jun 22, 2010·15 cites·20 claims
- 0792US7422071B2Swelling packer with overlapping petalsHILLS INC·Filed 2006·Granted Sep 9, 2008·49 cites·29 claims
- 0891US6471910B1Nonwoven fabrics formed from ribbon-shaped fibers and method and apparatus for making the sameHILLS INC·Filed 2000·Granted Oct 29, 2002·62 cites·12 claims
- 0990US7300272B1Fiber extrusion pack including split distribution platesHILLS INC·Filed 2004·Granted Nov 27, 2007·36 cites·39 claims
- 1089US7192550B2Method and apparatus for spinning a web of mixed fibers, and products produced therefromHILLS INC·Filed 2004·Granted Mar 20, 2007·21 cites·28 claims
- 1188US6811873B2Self-crimping multicomponent polymer fibers and corresponding methods of manufactureHILLS INC·Filed 2001·Granted Nov 2, 2004·39 cites·23 claims
- 1287US5851562AInstant mixer spin packHILLS INC·Filed 1996·Granted Dec 22, 1998·55 cites·24 claims
- 1386US5516476AProcess for making a fiber containing an additiveHILLS INC·Filed 1994·Granted May 14, 1996·40 cites·24 claims
- 1485US6803102B1Spinneret hole configuration for preventing bending of bicomponent extrudateHILLS INC·Filed 2000·Granted Oct 12, 2004·22 cites·9 claims
- 1584US6833104B2Method and apparatus for spinning a web of mixed fibers, and products produced therefromHILLS INC·Filed 2003·Granted Dec 21, 2004·33 cites·46 claims
- 1684US5462653AApparatus for continuous polymer filtrationHILLS INC·Filed 1994·Granted Oct 31, 1995·50 cites·29 claims
- 1778US7431869B2Methods of forming ultra-fine fibers and non-woven websHILLS INC·Filed 2004·Granted Oct 7, 2008·16 cites·6 claims
- 1877US6627025B1Method and apparatus for extruding easily-splittable plural-component fibers for woven and nonwoven fabricsHILLS INC·Filed 1999·Granted Sep 30, 2003·36 cites·9 claims
- 1974US7504348B1Production of nonwoven fibrous webs including fibers with varying degrees of shrinkageHILLS INC·Filed 2002·Granted Mar 17, 2009·17 cites·8 claims
- 2074US7252493B1Temperature control system to independently maintain separate molten polymer streams at selected temperatures during fiber extrusionHILLS INC·Filed 2003·Granted Aug 7, 2007·16 cites·21 claims
- 2170US7309430B2Filtration system utilizing a single valve to direct fluid streams between filter assemblies and corresponding methodsHILLS INC·Filed 2002·Granted Dec 18, 2007·8 cites·14 claims
- 2265US7192499B1Nonwoven fabric with characteristics similar to woven and knitted fabricsHILLS INC·Filed 2002·Granted Mar 20, 2007·4 cites·10 claims
- 2363US2024318356A1Meltblown spinning with separate and independent air and polymer temperature controlHILLS INC·Filed 2024·Application pending·0 cites
- 2457US7037097B2Methods and apparatus for controlling airflow in a fiber extrusion systemHILLS INC·Filed 2004·Granted May 2, 2006·3 cites·36 claims
- 2552US10030322B2Method of forming a continuous filament spun-laid webHILLS INC·Filed 2014·Granted Jul 24, 2018·0 cites·11 claims
- 2649US2009258787A1Superconducting Wires and Cables and Methods for Producing Superconducting Wires and CablesHILLS INC·Filed 2009·Application pending·0 cites
- 2745US2018298526A1Spun-laid webs with at least one of lofty, elastic and high strength characteristicsHILLS INC·Filed 2018·Application pending·0 cites
- 2830US6221266B1Variable capacity continuous extended area filterHILLS INC·Filed 1999·Granted Apr 24, 2001·5 cites·22 claims
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