Method and apparatus for high resolution flash chromatography
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Aug 15, 2008
filing date -
Aug 1, 2001
priority date (Note) -
Abandoned
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Abstract
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
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
TELEDYNE INSTRUMENTS INC | 1049 CAMINO DOS RIOS THOUSAND OAKS CA 91360 |
International Classification(s)

- 2008 Application Filing Year
- C07F Class
- 746 Applications Filed
- 271 Patents Issued To-Date
- 36.33 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Davison, Dale A | Greenwood, US | 32 | 356 |
# of filed Patents : 32 Total Citations : 356 | |||
Pipes, Ruth | Odell, US | 1 | 6 |
# of filed Patents : 1 Total Citations : 6 | |||
Silver, Jack E | Lincoln, US | 8 | 25 |
# of filed Patents : 8 Total Citations : 25 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 6 Citation Count
- C07F Class
- 17.48 % this patent is cited more than
- 16 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
- No Legal Status data available.

Matter Detail

Renewals Detail
