The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 2004
Filed:
Jun. 11, 2001
Applicant:
Inventors:
Mark Christopher Tonkin, Lewes, GB;
Mark Andrew Young, Bewdley, GB;
Olaf Norbert Kirchner, Genolier, CH;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 6/100 ; C02E 1/44 ;
U.S. Cl.
CPC ...
B01D 6/100 ; C02E 1/44 ;
Abstract
The present invention relates to the use of a hydrophilic membrane to provide by the process of pervaporation through the membrane water suitable for agricultural irrigation, industrial use, hydrating or rehydrating of food or agricultural or pharmaceutical compositions. The present invention also relates to a water purification apparatus which includes the hydrophilic membrane, comprising one or more layers of hydrophilic polymers, to purify water which may contain suspended or dissolved impurities and solids, including but not limited to seawater, brackish water and other kinds of polluted water.