Compagnie Generale des Etablissements Michelin had 12 patents in 3D printing during Q4 2023. The patents filed by Compagnie Generale des Etablissements Michelin in Q4 2023 focus on methods for purifying and manufacturing powder for use in additive manufacturing. These methods involve melting materials by an electric arc, forming droplets, cooling them to form solid particles, and enriching them with an active substance. The process aims to produce high-quality powder for various industrial applications. GlobalData’s report on Compagnie Generale des Etablissements Michelin gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Compagnie Generale des Etablissements Michelin grant share with 3D printing as a theme is 41% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Method and device for the purification of powders (Patent ID: US20230366060A1)
The patent filed by Compagnie Generale des Etablissements Michelin describes a method for purifying metal powder by preparing a suspension with a solvent, dispersing grains and contaminants in the solvent using mechanical energy, removing contaminants and solvent, and drying the grains under a controlled atmosphere with low oxygen content. The method involves steps such as stirring or sonication, maintaining a specific powder:solvent ratio, performing consecutive preparation, dispersion, and removal steps, and implementing quality control measures based on settling rate or turbidity of the suspension.
Additionally, the patent includes claims for a device designed to carry out the purification method, comprising a reactor for preparing the suspension and dispersing the grains, a removal means for eliminating contaminants and solvent, a mechanical energy source for applying energy during dispersion and removal, and drying means for drying the grains in a controlled atmosphere. The controlled atmosphere is specified to have low oxygen content, and the drying temperature is kept below 150°C. The device also includes features such as sieving macroscopic contaminants, using a neutral gas in the controlled atmosphere, and maintaining a specific flow rate during the removal step.
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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.
