Responsive gels and methods of use thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 17, 2012
Grant Date -
N/A
app pub date -
Mar 17, 2000
filing date -
Mar 17, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides variable pore size filters. The variable pore size filters of the present invention comprise a fabric matrix, having a set pore size, wherein the fabric matrix is coated with a gel that expands and shrinks in response to a trigger. When the gel is expanded, the pore size of the filter is small and filtering is accomplished. When the gel is shrunken, the pore size of the filter is large and cleaning of the filter by a backwash or forward flush of fluid is accomplished.
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