Company Filing History:
1 out of 295 
1 out of 832,891 Years Active: 2002-2003
Title: The Innovative Contributions of Stéphane Melen
Introduction
Stéphane Melen is a notable inventor based in Paris, France. He has made significant contributions to the field of engineering, particularly in processes involving gas injection and atmospheric control within chambers. With a total of 2 patents, Melen's work showcases his expertise and innovative spirit.
Latest Patents
Melen's latest patents include a process for the injection of gas using a nozzle. This invention involves an electric arc furnace equipped with a supersonic injector featuring a Laval nozzle. The nozzle's dimensions are meticulously calculated based on the desired flow rate of oxygen and the velocity of the jet. The pressure of the oxygen at the nozzle's intake is designed to ensure that the static pressure of the jet at the exit is nearly equal to the surrounding atmospheric pressure. Additionally, the injector includes an annular channel for natural gas injection, which can be utilized in burner mode during the initial melting of scrap iron, where the oxygen velocity remains subsonic.
Another significant patent focuses on optimizing installations that require control over the atmosphere inside a chamber. This optimization is achieved through the use of external inlet and outlet devices that prevent air ingress and gaseous emissions exit. The extraction device is equipped with flow rate regulation means to maintain an approximately zero pressure differential between the chamber's interior and exterior.
Career Highlights
Throughout his career, Melen has worked with several prominent companies, including Air Liquide and Société Anonyme à Directoire et Conseil de Surveillance pour l'Étude et l'Exploitation des Procédés Georges Claude. His experience in these organizations has contributed to his development as an inventor and engineer.
Collaborations
Melen has collaborated with various professionals in his field, including his coworker Bruno Allemand. Their joint efforts have likely led to advancements in their respective projects and innovations.
Conclusion
Stéphane Melen's contributions to engineering through his patents and collaborations highlight his innovative approach to solving complex problems. His work continues to influence the industry and inspire future inventors.