Mass spectrometer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 5, 2014
Grant Date -
Aug 29, 2013
app pub date -
Mar 21, 2013
filing date -
Mar 21, 2013
priority date (Note) -
Withdrawn
status (Latency Note)
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Abstract
A mass spectrometer is disclosed comprising a quadrupole rod set ion trap wherein a potential field is created at the exit of the ion trap which decreases with increasing radius in one radial direction. Ions within the ion trap are mass selectively excited in a radial direction. Ions which have been excited in the radial direction experience a potential field which no longer confines the ions axially within the ion trap but which instead acts to extract the ions and hence causes the ions to be ejected axially from the ion trap.
First Claim
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International Classification(s)
- 2013 Application Filing Year
- H01J Class
- 2042 Applications Filed
- 1790 Patents Issued To-Date
- 87.66 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H01J Class
- 0 % this patent is cited more than
- 11 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 4, 2025 |