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.:

US 7517581 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 14, 2009

Filed:

Sep. 23, 2004
Applicants:

John A. Simonetti, Thousand Oaks, CA (US);

Irina Vinarov, Moorpark, CA (US);

Inventors:

John A. Simonetti, Thousand Oaks, CA (US);

Irina Vinarov, Moorpark, CA (US);

Assignee:

Parker-Hannifin Corporation, Cleveland, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/26 (2006.01); B32B 3/00 (2006.01); B32B 27/00 (2006.01); B32B 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A hydrophilic semipermeable membrane can include a porous polymeric structure containing a blend of PVDF and hydroxyalkylcellulose. The membrane may be used for ultrafiltration. A method of making a hydrophilic semipermeable membrane can include providing a blend containing PVDF and hydroxyalkylcellulose, forming the blend into a porous polymeric structure, and purifying the porous polymeric structure.


Find Patent Forward Citations

Simonetti, John. (2009). Semipermeable hydrophilic membrane (U.S. Patent No. 7517581). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7517581

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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