The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2014
Filed:
Jun. 21, 2012
Sebastien Tixier, North Vancouver, CA;
Adrian M. Fuxman, North Vancouver, CA;
Sebastien Tixier, North Vancouver, CA;
Adrian M. Fuxman, North Vancouver, CA;
Honeywell ASCa Inc., Ontario, CA;
Abstract
A method includes measuring intensities of light passing through a sample of an algae culture at different wavelengths. The method also includes identifying, using the measured intensities, a peak absorption wavelength of at least one type of chlorophyll in the sample and/or an absorption ratio involving multiple types of chlorophyll in the sample. The method further includes determining whether the algae culture has a problem using the peak absorption wavelength and/or the absorption ratio. The peak absorption wavelength could be identified by identifying a specified wavelength at which a smallest amount of light passes through the sample. The absorption ratio could be identified by identifying an average absorption wavelength of first and second types of chlorophyll in the sample and identifying a peak absorption wavelength of the first type of chlorophyll.