ClearSign Technologies has been granted a patent for a combustion system that includes two perforated flame holders separated by a gap, sustaining combustion reactions of fuel and oxidant. The system is supported by a structure with tube segments forming a continuous tube. GlobalData’s report on ClearSign Technologies 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 ClearSign Technologies, Photovoltaic drones was a key innovation area identified from patents. ClearSign Technologies's grant share as of March 2024 was 36%. Grant share is based on the ratio of number of grants to total number of patents.

Combustion system with two flame holders and support structure

Source: United States Patent and Trademark Office (USPTO). Credit: ClearSign Technologies Corp

A recently granted patent (Publication Number: US11953199B2) discloses a combustion system comprising a fuel and oxidant source, a first flame holder, a second flame holder, and a support structure. The system includes a gap of non-zero width separating the first and second flame holders, with the support structure having tube segments forming a continuous tube on which the flame holders are positioned. The system aims to sustain combustion reactions within the flame holders efficiently.

Furthermore, the patent describes a method for using the combustion system, involving supporting the flame holders in a furnace volume, outputting fuel and oxidant onto them, and sustaining combustion reactions. The method emphasizes the positioning of flame holder tiles and the width of the gap to optimize the combustion process. Additionally, the patent introduces a modular burner with a metal flange, support legs, and a combustion air register, offering a configurable and efficient solution for combustion processes. The modular burner design facilitates insertion through furnace walls and includes features to minimize vortex formation and optimize the combustion reaction.

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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.