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.

Date of Patent:
Jan. 01, 2008

Filed:

Jun. 20, 2005
Applicants:

David R. Wheeler, Albuquerque, NM (US);

Patrick R. Lewis, Albuquerque, NM (US);

Shawn M. Dirk, Albuquerque, NM (US);

Daniel E. Trudell, Albuquerque, NM (US);

Inventors:

David R. Wheeler, Albuquerque, NM (US);

Patrick R. Lewis, Albuquerque, NM (US);

Shawn M. Dirk, Albuquerque, NM (US);

Daniel E. Trudell, Albuquerque, NM (US);

Assignee:

Sandia Corporation, Albuquerque, NM (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 53/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

Onium salt chemistry can be used to deposit very uniform thickness stationary phases on the wall of a gas chromatography column. In particular, the stationary phase can be bonded to non-silicon based columns, especially microfabricated metal columns. Non-silicon microfabricated columns may be manufactured and processed at a fraction of the cost of silicon-based columns. In addition, the method can be used to phase-coat conventional capillary columns or silicon-based microfabricated columns.


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