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:
Jun. 24, 2014
Filed:
Jan. 26, 2006
Applicant:
Debasish Mukhopadhyay, Palo Alto, CA (US);
Inventor:
Debasish Mukhopadhyay, Palo Alto, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 5/00 (2006.01); C01B 13/00 (2006.01); B01D 61/00 (2006.01); C02F 1/28 (2006.01); C02F 1/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
High purity water produced by reverse osmosis. A feedwater is pretreated to remove hardness and non-hydroxide alkalinity, and the pH is raised to 8.5 or more to ionize solute species such as boron that are sparingly ionized when in neutral or near neutral pH aqueous solution. Ultrapure water resulting is suitable for industrial use.