Method and apparatus for high resolution flash chromatography

Number of patents in Portfolio can not be more than 2000

United States of America Patent

SERIAL NO

12228725

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

To make an inexpensive chromatographic column and perform chromatography with it, column walls and a column end with a port are molded integrally from plastic. A closure is integrally molded with a port as well. One type of closure includes part of a snap-on fastener integrally molded to it to cooperate with corresponding parts molded integrally with the column walls. In another type of closure for higher pressures, the closure is spin welded to the tubular walls. In still another type of closure for still higher pressures, a retaining plate is pressed into the column to hold the packing in place. The closures have channels molded into them radiating from a port and opening toward packing material such as silica beads or porous polymeric plugs. Filters and secondary seals may be located at the ends to prevent leakage of the packing material. The packing is balanced spherical or spheroid-like derivitized silica packing.

First Claim

See full text

Other Claims data not available

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
TELEDYNE INSTRUMENTS INC1049 CAMINO DOS RIOS THOUSAND OAKS CA 91360

International Classification(s)

loading....
  • 2008 Application Filing Year
  • C07F Class
  • 746 Applications Filed
  • 271 Patents Issued To-Date
  • 36.33 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances200820092010201120122013201420152016201720180255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Davison, Dale A Greenwood, US 32 356
Pipes, Ruth Odell, US 1 6
Silver, Jack E Lincoln, US 8 25

Cited Art Landscape

Load Citation

Patent Citation Ranking

  • 6 Citation Count
  • C07F Class
  • 17.48 % this patent is cited more than
  • 16 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges792586723973121201 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 90100 +020406080100120140160180200220240260280

Forward Cite Landscape

Load Citation