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:
Jul. 15, 2014

Filed:

Dec. 03, 2007
Applicants:

William H. Steinecker, Dedham, MA (US);

Jagdish Shah, Southington, CT (US);

Oleg Zhdaneev, Cambridge, MA (US);

Gordon R. Lambertus, Wellesley, MA (US);

Hua Chen, Cambridge, MA (US);

Inventors:

William H. Steinecker, Dedham, MA (US);

Jagdish Shah, Southington, CT (US);

Oleg Zhdaneev, Cambridge, MA (US);

Gordon R. Lambertus, Wellesley, MA (US);

Hua Chen, Cambridge, MA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 30/60 (2006.01); B01D 53/02 (2006.01); G01N 30/26 (2006.01); G01N 30/56 (2006.01);
U.S. Cl.
CPC ...
Abstract

Methods and related systems are described for improving component separations in chromatography through novel techniques. The improvements in separation is due primarily to the provision of differential acceleration of the components being separated. Various systems and methods for providing differential acceleration are described including: increasing the cross section of the column towards the column outlet, changing the thickness or other composition of stationary phase within the column, and providing a temperature and/or mobile phase velocity gradient along the column.


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