DR

David Rafferty

1D 1St Detect: 22 patents #1 of 10Top 10%
Overall (All Time): #183,993 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10229824 Chemical analysis instrument with multi-purpose pump Michael Spencer, Warren Mino 2019-03-12
9870912 Mass spectrometers having real time ion isolation signal generators Louis W. Johnson 2018-01-16
9804141 Method for detecting organic and inorganic explosives Guido Fridolin Verbeck, IV, James Wylde, Michael Spencer 2017-10-31
9599547 Introducing an analyte into a chemical analyzer Michael Spencer, James Wylde, Pedro Ojeda, Thomas Bowden 2017-03-21
9570282 Ionization within ion trap using photoionization and electron ionization Abrar Riaz, James Wylde 2017-02-14
9472388 Mass dependent automatic gain control for mass spectrometer James Wylde, Michael Spencer 2016-10-18
9451364 Preconcentrating a sample in a preconcentrator evacuated to substantially the same pressure as an analytical device James Wylde, Michael Spencer, Pedro Ojeda 2016-09-20
9312112 Evacuating a sample chamber James Wylde, Michael Spencer, Pedro Ojeda 2016-04-12
9299545 Systems and methods for calibrating mass spectrometers James Wylde, Michael Spencer, Warren Mino 2016-03-29
9214325 Ion trap with radial opening in ring electrode Michael Spencer 2015-12-15
9214321 Methods and systems for applying end cap DC bias in ion traps 2015-12-15
9196467 Mass spectrum noise cancellation by alternating inverted synchronous RF David L. Gardner, James Wylde 2015-11-24
9082599 Mass spectrometer ion trap having asymmetric end cap apertures Michael Spencer 2015-07-14
9035244 Automatic gain control with defocusing lens Michael Spencer, James Wylde, David L. Gardner, Warren Mino 2015-05-19
8975573 Systems and methods for calibrating mass spectrometers James Wylde, Michael Spencer, Warren Mino 2015-03-10
8969794 Mass dependent automatic gain control for mass spectrometer James Wylde, Michael Spencer 2015-03-03
8946624 Mass spectrometer having an external detector Michael Spencer 2015-02-03
8784737 Introducing an analyte into a chemical analyzer Michael Spencer, James Wylde, Pedro Ojeda, Thomas Bowden 2014-07-22
8754361 Systems and methods for adjusting a mass spectrometer output Brian C. Oliver, Darron Black 2014-06-17
8704168 End cap voltage control of ion traps 2014-04-22
8610055 Mass spectrometer ion trap having asymmetric end cap apertures Michael Spencer 2013-12-17
8334506 End cap voltage control of ion traps 2012-12-18
7973277 Driving a mass spectrometer ion trap or mass filter 2011-07-05