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:
Jul. 15, 2008
Filed:
Mar. 04, 2005
Gary S. Izzo, Norton, MA (US);
Raymond P. Fisk, Norton, MA (US);
Jonathan Belanger, Whitinsville, RI (US);
Donald E. Ziniti, Cumberland, RI (US);
Yuri Tuvim, Gloucester, MA (US);
Gary S. Izzo, Norton, MA (US);
Raymond P. Fisk, Norton, MA (US);
Jonathan Belanger, Whitinsville, RI (US);
Donald E. Ziniti, Cumberland, RI (US);
Yuri Tuvim, Gloucester, MA (US);
Waters Investments Limited, New Castle, DE (US);
Abstract
Disclosed herein are apparatus and methods for mitigating column bed compression over time. This invention provides for an improved column design and method of controlling bed density in a chromatographic column using a protruding portion of a filter assembly. The invention results in a higher sorbent bed density than can normally be achieved using a fixed length column of conventional design. The invention may be implemented as a unique filter assembly or as a column tailored for the application and a matching filter assembly.