Inventor

Stuart C. Hansen

Inventor

Palo Alto, CA, US

Overview

1987–2017

Patent span

Electricity

Primary field (CPC H)

Patents· 21 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H01Jprimary

H01JElectric discharge tubes or discharge lamps88%

G01NInvestigating or analysing materials by determining their chemical or physical properties8%

H05HPlasma technique4%

PatentTitleYear

9,831,078Ion source for mass spectrometers2017 9,236,232'Multi-bore capillary for mass spectrometer'2016 9,153,427'Vacuum ultraviolet photon source, ionization apparatus, and related methods'2015 7,989,765'Method and apparatus for trapping ions'2011 7,557,343'Segmented rod multipole as ion processing cell'2009 7,372,042'Lens device for introducing a second ion beam into a primary ion path'2008 7,312,442'Enhanced gradient multipole collision cell for higher duty cycle'2007 7,208,726'Ion trap mass spectrometer with scanning delay ion extraction'2007 7,105,807'Multi dynode device and hybrid detector apparatus for mass spectrometry'2006 6,858,839'Ion optics for mass spectrometers'2005 6,717,135'Ion mirror for time-of-flight mass spectrometer'2004 6,642,516'Apparatus and method of laser dissociation for mass spectrometry'2003 6,617,768'Multi dynode device and hybrid detector apparatus for mass spectrometry'2003 6,469,296'Ion acceleration apparatus and method'2002 5,672,870'Mass selective notch filter with quadrupole excision fields'1997 5,661,300'Charged particle mirror'1997 5,644,131'Hyperbolic ion trap and associated methods of manufacture'1997 5,030,826'Single port thermospray ion source with coaxial vapor flow'1991 4,960,991'Multimode ionization source'1990 4,885,500'Quartz quadrupole for mass filter'1989 4,662,914'Flow-limited direct GC/MS interface'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1997Patents assigned to HEWLETT PACKARD CO (7)· patent assignee history

1987–2017Based in Palo Alto, CA, US· patent location history

2002–2017Patents assigned to AGILENT TECHNOLOGIES INC (14)· patent assignee history

2008–2015Based in Loveland, CO, US· patent location history

2016Patents assigned to HANSEN STUART C (1)· patent assignee history

2016Patents assigned to LI GANGQIANG (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
AGILENT TECHNOLOGIES INC	14	2002–2017
HEWLETT PACKARD CO	7	1987–1997
HANSEN STUART Cself	1	2016
LI GANGQIANG	1	2016

Locations

Location	Patents	Span
Palo Alto, California, US	19	1987–2017
Loveland, CO, US	2	2008–2015