Inventor
BERTSCH JAMES L
US35 patents
⚠️ This page may combine multiple inventors who share the name “BERTSCH JAMES L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AGILENT TECHNOLOGIES INC
23 patentsUS6653626B2Nov 25, 2003
Ion sampling for APPI mass spectrometry
AGILENT TECHNOLOGIES INC107 citations98
US7064322B2Jun 20, 2006
Mass spectrometer multipole device
AGILENT TECHNOLOGIES INC41 citations96
US6646257B1Nov 11, 2003
Multimode ionization source
AGILENT TECHNOLOGIES INC74 citations96
US6359275B1Mar 19, 2002
Dielectric conduit with end electrodes
AGILENT TECHNOLOGIES INC103 citations95
US6294779B1Sep 25, 2001
Orthogonal ion sampling for APCI mass spectrometry
AGILENT TECHNOLOGIES INC36 citations95
US7488953B2Feb 10, 2009
Multimode ionization source
AGILENT TECHNOLOGIES INC16 citations92
US7078681B2Jul 18, 2006
Multimode ionization source
AGILENT TECHNOLOGIES INC29 citations92
USRE36892EOct 3, 2000
Orthogonal ion sampling for electrospray .[.LC/MS.]. mass spectrometry
AGILENT TECHNOLOGIES INC28 citations92
US8039795B2Oct 18, 2011
Ion sources for improved ionization
AGILENT TECHNOLOGIES INC17 citations91
US8890086B1Nov 18, 2014
Ion detector response equalization for enhanced dynamic range
AGILENT TECHNOLOGIES INC21 citations90
US6797946B2Sep 28, 2004
Orthogonal ion sampling for APCI mass spectrometry
AGILENT TECHNOLOGIES INC12 citations82
US6498343B2Dec 24, 2002
Orthogonal ion sampling for APCI mass spectrometry
AGILENT TECHNOLOGIES INC12 citations81
US7507955B2Mar 24, 2009
Mass spectrometer multipole device
AGILENT TECHNOLOGIES INC5 citations74
US6849846B2Feb 1, 2005
Precision multiple electrode ion mirror
AGILENT TECHNOLOGIES INC11 citations74
US6639216B2Oct 28, 2003
Orthogonal ion sampling for APCI mass spectrometry
AGILENT TECHNOLOGIES INC11 citations73
US7329879B2Feb 12, 2008
Apparatus for manipulation of ions and methods of making apparatus
AGILENT TECHNOLOGIES INC8 citations72
US7309859B2Dec 18, 2007
Ion sampling for APPI mass spectrometry
AGILENT TECHNOLOGIES INC6 citations72
US7002146B2Feb 21, 2006
Ion sampling for APPI mass spectrometry
AGILENT TECHNOLOGIES INC8 citations72
US6812459B2Nov 2, 2004
Ion sampling for APPI mass spectrometry
AGILENT TECHNOLOGIES INC7 citations72
US9536723B1Jan 3, 2017
Thin field terminator for linear quadrupole ion guides, and related systems and methods
AGILENT TECHNOLOGIES INC2 citations71
US9449804B2Sep 20, 2016
Dual field multipole converging ion guides, hyperbolic ion guides, and related methods
AGILENT TECHNOLOGIES INC3 citations70
US11152199B2Oct 19, 2021
Multipole ion optic assembly
AGILENT TECHNOLOGIES INC0 citations62
US10147595B2Dec 4, 2018
Quadrupole rod assembly
AGILENT TECHNOLOGIES INC0 citations41
HEWLETT PACKARD CO
8 patentsUS5750988AMay 12, 1998
Orthogonal ion sampling for APCI mass spectrometry
HEWLETT PACKARD CO200 citations98
US5736741AApr 7, 1998
Ionization chamber and mass spectrometry system containing an easily removable and replaceable capillary
HEWLETT PACKARD CO105 citations98
US5495108AFeb 27, 1996
Orthogonal ion sampling for electrospray LC/MS
HEWLETT PACKARD CO105 citations97
US5838003ANov 17, 1998
Ionization chamber and mass spectrometry system containing an asymmetric electrode
HEWLETT PACKARD CO137 citations96
US5753910AMay 19, 1998
Angled chamber seal for atmospheric pressure ionization mass spectrometry
HEWLETT PACKARD CO98 citations95
US6032876AMar 7, 2000
Apparatus for forming liquid droplets having a mechanically fixed inner microtube
HEWLETT PACKARD CO56 citations94
US5726447AMar 10, 1998
Ionization chamber and mass spectrometer having a corona needle which is externally removable from a closed ionization chamber
HEWLETT PACKARD CO36 citations88
US6278110B1Aug 21, 2001
Orthogonal ion sampling for APCI mass spectrometry
HEWLETT PACKARD CO11 citations73