Optics: measuring and testing – Refraction testing – Prism engaging specimen
Reexamination Certificate
2007-09-10
2008-12-30
Pham, Hoa Q (Department: 2886)
Optics: measuring and testing
Refraction testing
Prism engaging specimen
C356S445000, C356S436000
Reexamination Certificate
active
07471379
ABSTRACT:
An apparatus utilizes optical reflectivity (REF) to measure concentrations in liquids. The REF optical system is packaged in a compact and cost-effective form factor. An electronic circuit drives the optical system. The miniaturized REF sensor is situated in an optical-fluidic cell or an optical-fluidic manifold with an optical window in contact with the liquid. Changes in a total internal reflection (TIR) signal are sensitive to temperature and concentration of the liquid. These changes in the TIR signal are used to accurately determine the concentration in the liquid. The liquids may be either static or dynamic.
REFERENCES:
patent: 3751672 (1973-08-01), Michel et al.
patent: 4704029 (1987-11-01), Van Heuvelen
patent: 4778270 (1988-10-01), Kinney et al.
patent: 5364510 (1994-11-01), Carpio
patent: 5442435 (1995-08-01), Cooper et al.
patent: 5565978 (1996-10-01), Okubo et al.
patent: 5617201 (1997-04-01), Kahre
patent: 5898503 (1999-04-01), Keller et al.
patent: 5912456 (1999-06-01), Melendez et al.
patent: 5922285 (1999-07-01), Melendez et al.
patent: 5946083 (1999-08-01), Melendez et al.
patent: 6024923 (2000-02-01), Melendez et al.
patent: 6045756 (2000-04-01), Carr et al.
patent: 6097479 (2000-08-01), Melendez et al.
patent: 6111248 (2000-08-01), Melendez et al.
patent: 6111652 (2000-08-01), Melendez et al.
patent: 6118520 (2000-09-01), Harner
patent: 6183696 (2001-02-01), Elkind et al.
patent: 6191847 (2001-02-01), Melendez et al.
patent: 6239255 (2001-05-01), Furlong et al.
patent: 6267641 (2001-07-01), Vanell et al.
patent: 6326612 (2001-12-01), Elkind et al.
patent: 6374845 (2002-04-01), Melendez et al.
patent: 6386894 (2002-05-01), Carr
patent: 6401974 (2002-06-01), Elkind
patent: 6415235 (2002-07-01), Bartholomew et al.
patent: 6549276 (2003-04-01), Longtin
patent: 6574575 (2003-06-01), Deng et al.
patent: 6594018 (2003-07-01), Bartholomew
patent: 6885455 (2005-04-01), Bartholomew et al.
patent: 7064816 (2006-06-01), Langenbacher et al.
patent: 7144153 (2006-12-01), Sato
patent: 7268864 (2007-09-01), Chiarello et al.
patent: 7319523 (2008-01-01), Chiarello et al.
patent: 7397547 (2008-07-01), Chiarello et al.
patent: 2005/0046853 (2005-03-01), Sato
patent: 2005/0110989 (2005-05-01), Schermer et al.
patent: 2005/0179901 (2005-08-01), Ostlin et al.
patent: 2006/0094941 (2006-05-01), Cho
patent: 2006/0158653 (2006-07-01), Chiarello et al.
patent: 401170838 (1989-07-01), None
Chinowsky, T. M. et al., Performance of the Spreeta 2000 Integrated Surface Plasmon Resonance Affinity Sensor, Sensors and Actuators B 6954, pp. 1-9, 2003.
Geake, J. E et al., A Linear Differentiating Refractometer, Meas. Sci. Technol. 5 pp. 531-539, Printed in the UK, 1994.
Geake, J.E. et al., The Huygens SSP Refractometer, Proceedings Symposium of Titan, Apr. 1992.
Lorenz, R. D., Raindrops of Titan, Adv. Space Res., vol. 15, No. 3, pp. (3)317-(3)320, 1995.
Meeten G. H. et al., Refractive Index Measurement of Absorbing and Turbid Fluids by Reflection near the Critical Angle, Meas. Sci. Technol. 6, pp. 214-221, Printed in the UK, 1995.
Boyd Charles Eric
Chiarello Ronald P.
McPhee Duncan A.
Alston & Bird LLP
Hemminger Steven D.
Jetalon Solutions, Inc.
Pham Hoa Q
LandOfFree
Method for a liquid chemical concentration analysis system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for a liquid chemical concentration analysis system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for a liquid chemical concentration analysis system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4045591