US Patent No: 6,764,857

Number of patents in Portfolio can not be more than 2000

Systems and methods for measuring nitrate levels

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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, MA1052

International Classification(s)

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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 13 223

Cited Art Landscape

Patent Info (Count) # Cites Year
 
AMETEK, INC. (1)
* 4,647,777 Selective gas detector 18 1985
 
TRUSTEES OF TUFTS COLLEGE (1)
* 5,970,804 Methods and apparatus for analysis of complex mixtures 42 1997
 
THERMO ENVIRONMENTAL INSTRUMENTS INC. (2)
* 5,401,468 Dual flow path carbon particulate monitor 12 1994
* 5,983,732 Integrated collection and vaporization particle chemistry monitoring 13 1998
 
PRESIDENT AND FELLOWS OF HARVARD COLLEGE (1)
* 5,854,077 Continuous measurement of particulate nitrate 7 1996
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
* 2003/0138,965 Systems and methods for measuring nitrate levels 1 2002
* 2005/0059,157 Systems and methods for measuring nitrate levels 1 2004
 
UT-BATTELLE, LLC (2)
* 8,771,402 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