US Patent No: 6,770,111
Number of patents in Portfolio can not be more than 2000
Pollucite-based ceramic with low CTE
Stats
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Aug 3, 2004
Issued date -
Oct 25, 2001
filing date -
10/045,256
serial no -
Expired
status
Importance
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Abstract
A ceramic structure which is pollucite-based and has high refractoriness and high resistance to thermal shock. The inventive structure is suitable in high temperature applications such as a filtering particulates from diesel engine exhaust.
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First Claim
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,094,677 Preparation of pollucite ceramics | 5 | 1991 | |
| 5,296,423 Cordierite substrates | 3 | 1992 | |
| 5,925,308 Rapid-setting formable mixtures and method of making and using same | 13 | 1997 | |
| 6,322,605 Diesel exhaust filters | 19 | 2000 | |
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| 5,071,801 High density leucite based ceramics from zeolite | 40 | 1990 | |
| 5,192,722 High density leucite/pollucite based ceramics from zeolite | 7 | 1991 | |
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| 4,329,162 Diesel particulate trap | 195 | 1980 | |
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| 5,875,407 Method for synthesizing pollucite from chabazite and cesium chloride | 1 | 1997 | |
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| 5,209,885 Aqueous extrusion of silicon nitride | 8 | 1991 | |
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| 5,549,725 Cordierite ceramic filter | 29 | 1994 | |
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| 5,204,077 Pollucite crystalline powders with low thermal expansion coefficients and methods for their preparation | 4 | 1991 | |
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| 5,766,393 Process for sealing an end face of a ceramic honeycomb structure | 9 | 1996 | |
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 | Feb 3, 2016 |
| 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 |