HILLS, INC.
28Patents
4Active
28Granted
36Portfolio score
Filing activity: Feb 15, 1994 → Jul 15, 2014 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6861142B1 | Controlling the dissolution of dissolvable polymer components in plural component fibers | Emerging Cross-Sectional Technologies | 1,419 | Expired |
| US6551353B1 | Synthetic fibers for medical use and method of making the same | Emerging Cross-Sectional Technologies | 195 | Expired |
| US6767498B1 | Process of making microfilaments | Textiles; Paper | 78 | Expired |
| US7160612B2 | Multi-component fibers having enhanced reversible thermal properties and methods of manufacturing thereof | Emerging Cross-Sectional Technologies | 76 | Expired |
| US5851562A | Instant mixer spin pack | Textiles; Paper | 43 | Expired |
| US5516476A | Process for making a fiber containing an additive | Textiles; Paper | 36 | Expired |
| US6471910B1 | Nonwoven fabrics formed from ribbon-shaped fibers and method and apparatus for making the same | Textiles; Paper | 35 | Expired |
| US6811873B2 | Self-crimping multicomponent polymer fibers and corresponding methods of manufacture | Emerging Cross-Sectional Technologies | 25 | Expired |
| US7422071B2 | Swelling packer with overlapping petals | Fixed Constructions | 24 | Expired |
| US5462653A | Apparatus for continuous polymer filtration | Performing Operations; Transporting | 21 | Expired |
| US6338814B1 | Spunbond web formation | Textiles; Paper | 20 | Expired |
| US7192550B2 | Method and apparatus for spinning a web of mixed fibers, and products produced therefrom | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6803102B1 | Spinneret hole configuration for preventing bending of bicomponent extrudate | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6833104B2 | Method and apparatus for spinning a web of mixed fibers, and products produced therefrom | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6627025B1 | Method and apparatus for extruding easily-splittable plural-component fibers for woven and nonwoven fabrics | Performing Operations; Transporting | 13 | Expired |
| US7300272B1 | Fiber extrusion pack including split distribution plates | Performing Operations; Transporting | 11 | Expired |
| US7179412B1 | Method and apparatus for producing polymer fibers and fabrics including multiple polymer components in a closed system | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7740777B2 | Method and apparatus for producing polymer fibers and fabrics including multiple polymer components | Emerging Cross-Sectional Technologies | 9 | Active |
| US7431869B2 | Methods of forming ultra-fine fibers and non-woven webs | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7504348B1 | Production of nonwoven fibrous webs including fibers with varying degrees of shrinkage | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7252493B1 | Temperature control system to independently maintain separate molten polymer streams at selected temperatures during fiber extrusion | Textiles; Paper | 3 | Expired |
| US6221266A | Variable capacity continuous extended area filter | Performing Operations; Transporting | 2 | Expired |
| US7192499B1 | Nonwoven fabric with characteristics similar to woven and knitted fabrics | Textiles; Paper | 2 | Expired |
| US10041188B2 | Method and apparatus for production of meltblown nanofibers | Performing Operations; Transporting | 1 | Active |
| US7037097B2 | Methods and apparatus for controlling airflow in a fiber extrusion system | Textiles; Paper | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.