Xylem. has been granted a patent for a swept frequency fluorometer designed to monitor environmental water quality. The device identifies fluorescence species-of-interest in water samples, distinguishing them from overlapping species by analyzing reflected light and characteristic optical frequencies. GlobalData’s report on Xylem gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Xylem, was a key innovation area identified from patents. Xylem's grant share as of July 2024 was 54%. Grant share is based on the ratio of number of grants to total number of patents.
Fluorometer for identifying fluorescence species in water samples
The granted patent US12061149B2 describes a fluorometer designed for monitoring environmental water quality by identifying specific fluorescence species-of-interest within water samples that may contain overlapping fluorescence signals. The core of the invention involves a signal processor that receives information about excitation light reflected from these fluorescence species. This excitation light is modulated across a variable frequency range, encompassing both the characteristic optical frequency of the fluorescence species and a midpoint of a relative phase transition at 45 degrees, which corresponds to a distinct fluorescence lifetime. The signal processor is tasked with distinguishing the fluorescence species-of-interest from overlapping signals based on the received data.
Additionally, the patent outlines the structural components of the fluorometer, including a light source capable of sweeping excitation light across the specified frequency range and a light sensor that detects this light. The light sensor may be configured as a linear sensor array to enhance detection capabilities. The invention emphasizes the use of a swept-frequency light source, which can include a quasi-collimated light source, to effectively excite the fluorescence species. The overall design aims to improve the accuracy and reliability of environmental water quality monitoring by enabling the identification of specific fluorescence species even in complex mixtures.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
