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:
Dec. 26, 2006
Filed:
Aug. 10, 2004
Applicants:
Jeffrey A. Koehler, Pasadena, CA (US);
Paren P. Patel, Sierra Madre, CA (US);
Inventors:
Jeffrey A. Koehler, Pasadena, CA (US);
Paren P. Patel, Sierra Madre, CA (US);
Assignee:
Nanostream, Inc., Pasadena, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multi-layer microfluidic separation device comprises a polymeric membrane frit that may be securely bonded within the device and minimizes lateral wicking. Stationary phase material having an average particle size is retained by a frit having an average pore size that is smaller than the average particle size. In one embodiment, a secure bond is ensured by treating the polymer to match its surface energy to that of the materials to which it is bound. Treatments include plasma treatment, irradiation and the application of acids.