Assignee
VALCO INSTR CO INC
US·16 granted patents·1 pending application·318 citations·filing 1987–2022
Top patents by PatentIndex Score
17 records- 0195US7316777B2Compression fitting nut with interlocked ferruleVALCO INSTR CO INC·Filed 2006·Granted Jan 8, 2008·46 cites·5 claims
- 0282US5394092ASystem for identifying and quantifying selected constituents of gas samples using selective photoionizationVALCO INSTR CO INC·Filed 1994·Granted Feb 28, 1995·57 cites·28 claims
- 0381US6575501B1Tube sealing bushingVALCO INSTR CO INC·Filed 2000·Granted Jun 10, 2003·30 cites·2 claims
- 0481US6193213B1Variable pressure loading system utilizing combined spring and fluid pressureVALCO INSTR CO INC·Filed 1999·Granted Feb 27, 2001·43 cites·25 claims
- 0580US7091044B2Partial modulation via pulsed flow modulator for comprehensive two-dimensional liquid or gas chromatographyVALCO INSTR CO INC·Filed 2004·Granted Aug 15, 2006·14 cites·7 claims
- 0678US7442902B2Adaptive temperature controllerVALCO INSTR CO INC·Filed 2007·Granted Oct 28, 2008·14 cites·9 claims
- 0775US7601543B2Method of modulating a second carrier for partial modulation via pulsed flow modulator for comprehensive two-dimensional liquid or gas chromatographyVALCO INSTR CO INC·Filed 2005·Granted Oct 13, 2009·6 cites·3 claims
- 0874US7507586B2Partial modulation via pulsed flow modulator for comprehensive two-dimensional liquid or gas chromatography with multiple modulation periodsVALCO INSTR CO INC·Filed 2005·Granted Mar 24, 2009·3 cites·7 claims
- 0972US6202698B1Multiple port diaphragm valveVALCO INSTR CO INC·Filed 1997·Granted Mar 20, 2001·37 cites·29 claims
- 1069US11519888B2System and valve for liquid chromatographyVALCO INSTR CO INC·Filed 2021·Granted Dec 6, 2022·0 cites·2 claims
- 1167US5594346AApparatus and methods for identifying and quantifying compounds using a plurality of pulsed rare gas photoionization detectorsVALCO INSTR CO INC·Filed 1994·Granted Jan 14, 1997·30 cites·23 claims
- 1248US12535467B2Linear actuator for chromatographyVALCO INSTR CO INC·Filed 2022·Granted Jan 27, 2026·0 cites·13 claims
- 1348US6133740AChlorine specific gas chromatographic detectorVALCO INSTR CO INC·Filed 1996·Granted Oct 17, 2000·13 cites·25 claims
- 1445US4779465AMethod and apparatus for training horn playersVALCO INSTR CO INC·Filed 1987·Granted Oct 25, 1988·10 cites·17 claims
- 1532US6247731B1Nut with controlled internal radiusVALCO INSTR CO INC·Filed 1999·Granted Jun 19, 2001·9 cites·7 claims
- 1631US2005197538A1Reagent and sample introduction plunger device for a syringeVALCO INSTR CO INC·Filed 2005·Application pending·0 cites
- 1726US6030436APermeation tube for delivering fluid at a constant flow rate independent of ambient temperature variationsVALCO INSTR CO INC·Filed 1998·Granted Feb 29, 2000·6 cites·37 claims
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