Systems and methods for measuring nitrate levels

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United States of America Patent

PATENT NO 6503758
SERIAL NO

09687190

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The systems and methods described herein relate to the measurement of nitrate levels in a sample of gas, for example, air, exhaust, or other sources of gas. Moreover, the systems and methods described herein are capable of operating using short sample collection periods, permitting rapid data collection and finely time-resolved nitrate monitoring over a span of time. Additionally, ambient nitrate can effectively be distinguished from other airborne particles, such as sulfate and carbon.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PRESIDENT AND FELLOWS OF HARVARD COLLEGECAMBRIDGE, MA1093

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Allen, George A Swampscott, MA 6 40
Ding, Yiming Malden, MA 4 7
Koutrakis, Petros Weston, MA 13 225

Cited Art Landscape

Patent Info (Count) # Cites Year
 
AMETEK, INC. (1)
* 4647777 Selective gas detector 18 1985
 
TRUSTEES OF TUFTS COLLEGE (1)
* 5970804 Methods and apparatus for analysis of complex mixtures 42 1997
 
THERMO ENVIRONMENTAL INSTRUMENTS INC. (2)
* 5401468 Dual flow path carbon particulate monitor 12 1994
* 5983732 Integrated collection and vaporization particle chemistry monitoring 13 1998
 
PRESIDENT AND FELLOWS OF HARVARD COLLEGE (1)
* 5854077 Continuous measurement of particulate nitrate 8 1996
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (4)
* 2003/0138,965 Systems and methods for measuring nitrate levels 1 2002
* 2005/0059,157 Systems and methods for measuring nitrate levels 1 2004
* 2011/0027,899 HAZARDOUS CHEMICALS DETECTOR & METHODS OF USE THEREOF 0 2010
8846407 Chemical explosive detector 1 2012
 
STICHTING ENERGIEONDERZOEK CENTRUM NEDERLAND (2)
7830508 Method and assembly for determining soot particles in a gas stream 0 2006
* 2008/0198,382 Method And Assembly For Determining Soot Particles In A Gas Stream 1 2006
 
MORPHO DETECTION, LLC (2)
7721588 Systems and methods for detecting particles 1 2007
* 2007/0220,953 SYSTEMS AND METHODS FOR DETECTING PARTICLES 2 2007
 
UT-BATTELLE, LLC (2)
* 8771402 Membrane based apparatus for measurement of volatile particles 0 2012
* 2013/0186,269 MEMBRANE BASED APPARATUS FOR MEASUREMENT OF VOLATILE PARTICLES 0 2012
* Cited By Examiner