US Patent No: 6,706,361
Number of patents in Portfolio can not be more than 2000
Polymeric ion exchange fibers
Stats
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Mar 16, 2004
Issued date -
Jun 21, 2000
filing date -
09/599,811
serial no -
In Force
status
Importance
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Abstract
Ion exchange resin composite fibers include a substrate fiber, and an ion exchange resin, on the substrate fiber. The ion exchange resin composite fibers exhibit greatly increased kinetic rates of reaction and regeneration.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,265,768 Ion exchange material prepared from partially pyrolyzed macroporous polymer particles | 51 | 1979 | |
| 4,313,832 Method for treatment of aqueous solutions with ion exchange fibers | 37 | 1980 | |
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| 5,580,770 Support containing particulate adsorbent and microorganisms for removal of pollutants | 32 | 1993 | |
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| 6,124,114 Hemoglobins with intersubunit dislufide bonds | 4 | 1995 | |
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| 5,318,846 Process of removing ions from solutions using a complex with sulfur-containing hydrocarbons also containing electron withdrawing groups bonded to a solid hydrophilic matrix | 12 | 1993 | |
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| 4,513,032 Producing a solid polymeric electrolyte | 6 | 1983 | |
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| 6,283,029 Direct drawing type lithographic printing plate precursor | 11 | 1999 | |
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| 5,547,760 Compositions and processes for separating and concentrating certain ions from mixed ion solutions using ion-binding ligands bonded to membranes | 35 | 1994 | |
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| 5,834,114 Coated absorbent fibers | 52 | 1995 | |
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| 5,350,523 Anion exchange method | 21 | 1992 | |
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| 4,693,828 Method of ion-exchanging and/or adsorption | 18 | 1986 | |
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| 5,424,042 Apparatus and method for processing wastes | 33 | 1993 | |
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| 6,130,175 Integral multi-layered ion-exchange composite membranes | 36 | 1999 | |
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| 4,569,756 Water treatment system | 16 | 1983 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 16, 2015 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |