Assignee
OI CORP
US26 patents
Top patents by PatentIndex Score
US5948307ASep 7, 1999
High pressure relief for microwave digestion vessel assembly
OI CORP33 citations92
US4619902AOct 28, 1986
Total organic carbon analyzer
OI CORP46 citations91
US5814128ASep 29, 1998
Water management device for gas chromatography sample concentration
OI CORP26 citations90
US5250093AOct 5, 1993
Water management device for gas chromatography sample concentration
OI CORP29 citations90
US6979818B2Dec 27, 2005
Mass spectrometer for both positive and negative particle detection
OI CORP18 citations84
US5795368AAug 18, 1998
Microtrap sample concentrator and methods of use
OI CORP36 citations83
US7550722B2Jun 23, 2009
Focal plane detector assembly of a mass spectrometer
OI CORP16 citations81
US5358557AOct 25, 1994
Water management device for gas chromatography sample concentration
OI CORP15 citations80
US4804846AFeb 14, 1989
Photoionization detector for gas chromatography
OI CORP20 citations80
US4649124AMar 10, 1987
Electrolytic conductivity detection process
OI CORP23 citations80
US4555383ANov 26, 1985
Electrolytic conductivity detector
OI CORP22 citations80
US7442920B2Oct 28, 2008
Optical bench for a mass spectrometer system
OI CORP19 citations77
US5578271ANov 26, 1996
Tandem photoionization detector and halogen specific detector
OI CORP19 citations76
US5528039AJun 18, 1996
Method and apparatus for linearization of non-dispersive infrared detector response
OI CORP16 citations72
US5582633ADec 10, 1996
Water management device for gas chromatography sample concentration
OI CORP7 citations71
US5470380ANov 28, 1995
Management device for gas chromatography sample concentration
OI CORP10 citations71
US5261937ANov 16, 1993
Sample concentrator filter
OI CORP15 citations71
US5762314AJun 9, 1998
Diaphragm valve for cryogenic applications
OI CORP14 citations66
US5337619AAug 16, 1994
Radiant energy sample heating and temperature control
OI CORP14 citations65
US4917709AApr 17, 1990
Permeation pH control system
OI CORP3 citations58
US7306770B2Dec 11, 2007
High temperature combustion tube
OI CORP2 citations57
US7715010B2May 11, 2010
Non-dispersive electromagnetic radiation detector
OI CORP1 citations44
US7223972B2May 29, 2007
Stabilization of a magnetic section of a mass spectrometer
OI CORP0 citations39
US11041836B2Jun 22, 2021
Catalyst guard
OI CORP0 citations35
US10816267B2Oct 27, 2020
Smart slide
OI CORP0 citations34
US6640654B2Nov 4, 2003
Variable split sampler for air monitoring
OI CORP0 citations32