Chromatography column with large diameter end fitting openings

US8936723B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8936723-B2
Application numberUS-55283709-A
CountryUS
Kind codeB2
Filing dateSep 2, 2009
Priority dateSep 2, 2009
Publication dateJan 20, 2015
Grant dateJan 20, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A column for use in chromatography, the column having a tube with a bore that can contain a packing medium captured between two porous plugs positioned at opposite ends. End fittings are attached to the tube ends, the end fittings having a duct with a duct opening having a diameter at least as large as the diameter of the tube bore which it faces. The duct opening may be positioned within a recess in spaced apart relation to the porous plugs to prevent the end fitting from contacting the plug and burnishing its surface.

First claim

Opening claim text (preview).

What is claimed is: 1. A column for chromatography, said column comprising: a tube having a bore therethrough, said bore having a diameter; a first porous plug located within said bore at a first end of said tube; a first fitting attached to said first end of said tube, said first fitting having a duct positioned therein, said duct having a first opening in facing relation with said first porous plug, said first opening having a diameter at least about equal to said bore diame…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US8936723B2 cover?
A column for use in chromatography, the column having a tube with a bore that can contain a packing medium captured between two porous plugs positioned at opposite ends. End fittings are attached to the tube ends, the end fittings having a duct with a duct opening having a diameter at least as large as the diameter of the tube bore which it faces. The duct opening may be positioned within a rec…
Who is the assignee on this patent?
Nickerson Mark A, Willis Frank Marsden, Barber William, and 1 more
What technology area does this patent fall under?
Primary CPC classification G01N30/6026. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jan 20 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).