US Patent No: 6,764,857

Number of patents in Portfolio can not be more than 2000

Systems and methods for measuring nitrate levels

Stats

See full text
ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

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.

Loading the Abstract Image... loading....

First Claim

See full text

all claims..

Related Publications

Loading Related Publications... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
PRESIDENT AND FELLOWS OF HARVARD COLLEGECAMBRIDGE, MA1160

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Allen, George A Swampscott, MA 6 34
Ding, Yiming Malden, MA 4 2
Koutrakis, Petros Wellesley, MA 14 193

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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 11 1998
 
AMETEK, INC. (1)
4,647,777 Selective gas detector 17 1985
 
Meloy Laboratories, Inc. (1)
4,236,895 Analytical apparatus and method employing purified ozone 20 1979
 
PRESIDENT AND FELLOWS OF HARVARD COLLEGE (1)
5,854,077 Continuous measurement of particulate nitrate 3 1996
 
TRUSTEES OF TUFTS COLLEGE (1)
5,970,804 Methods and apparatus for analysis of complex mixtures 39 1997

Patent Citation Ranking

Forward Cite Landscape

  • No Forward Cites to Display

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 20, 2016
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00