Kurita Water Industries. has filed a patent for a membrane separation method using a combined-chlorine-based oxidizing agent in water, allowing longer operation in aqueous systems. The method requires a Free 300-second value of 0.036 mg/L-Cl2 or more in the water of interest. GlobalData’s report on Kurita Water Industries 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 Kurita Water Industries, Reverse osmosis and nano-filtration was a key innovation area identified from patents. Kurita Water Industries's grant share as of January 2024 was 20%. Grant share is based on the ratio of number of grants to total number of patents.
Membrane separation method using combined-chlorine-based oxidizing agent
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The patent application (Publication Number: US20240025772A1) describes a membrane separation method that involves the use of a combined-chlorine-based oxidizing agent in water of interest. The method includes allowing the water containing the oxidizing agent to pass through a membrane separation apparatus, with specific parameters such as the Free 300-second value of chlorine concentration being crucial. This value is determined after 300 seconds using a free chlorine measurement reagent and must be at least 0.036 mg/L-Cl2 to meet the criteria outlined in the claims.
Furthermore, the patent application details the importance of biofouling potential in the water of interest, with specific thresholds mentioned for effective membrane separation. The method aims to control the addition amount of the combined-chlorine-based oxidizing agent based on indicators such as the Free 300-second value and biofouling potential. The application also highlights the use of this method for suppressing biofouling and operating aqueous systems equipped with membrane separation apparatus. Overall, the patent application provides a comprehensive framework for utilizing combined-chlorine-based oxidizing agents in membrane separation processes to enhance efficiency and performance.
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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.
