Company Filing History:
3 out of 137 
2 out of 2,504 
1 out of 110 Years Active: 1993-2000
Title: The Innovations of Gerard Duperray
Introduction
Gerard Duperray is a notable inventor based in La Norville, France. He has made significant contributions to the field of superconductivity, holding a total of six patents. His work focuses on advanced methods for creating high-temperature superconductors, which have important applications in various technological fields.
Latest Patents
Duperray's latest patents include a method of decoupling an HTc superconductive multifilament strand. This method utilizes a powder in tube technique to create an HTc superconductive multifilament strand with a silver-based matrix. The process involves preparing a composite multilayer material that includes at least one silver-based sheet and a layer of non-superconductive ceramic material that is permeable to oxygen. During the monofilament step, this composite material is interposed between layers of silver-based material, forming a protective envelope.
Another significant patent is a process for texturing an HTc superconductor. This process involves several steps, including raising the temperature of the superconductor to its melting point, maintaining that temperature for a short period, and then varying the temperature between the melting point and the synthesis temperature. The process concludes with a controlled cooling phase, which is crucial for achieving the desired properties of the superconductor.
Career Highlights
Throughout his career, Gerard Duperray has worked with prominent companies such as Alcatel and Alcatel Alsthom Compagnie Generale D'electricite. His experience in these organizations has allowed him to develop and refine his innovative techniques in superconductivity.
Collaborations
Duperray has collaborated with notable colleagues, including Peter Friedrich Herrmann and Denis Legat. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Gerard Duperray's contributions to the field of superconductivity through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence advancements in technology and materials science.