Company Filing History:
2 out of 208 
1 out of 701 Years Active: 1997-2001
Title: The Innovations of Jean-Francois Cretegny
Introduction
Jean-Francois Cretegny is a notable inventor based in Marly le Roi, France. He has made significant contributions to the field of composite materials, holding a total of 3 patents. His work focuses on enhancing the mechanical and tribological characteristics of tubular structures.
Latest Patents
Cretegny's latest patents include a method for making tubes out of composite material that possess high tribological and mechanical characteristics. This invention involves a tubular structure that comprises reinforcing fibers impregnated with a thermosetting polymer and a sheet of matrix material filled with an additive to improve tribological and heat conductivity characteristics. The design features alternating layers of reinforcing fibers and matrix material, which are wound together to form the tubular structure.
Another significant patent is an apparatus for manufacturing composite material in the form of an annular tube. This method includes several steps, such as preheating a mandrel, fixing the materials, and controlling the temperature and rotation during the winding process. The resulting composite material and the machine designed for its production are also part of this innovative approach.
Career Highlights
Throughout his career, Cretegny has worked with prominent companies such as Société Européenne de Propulsion and Société Nationale d'Étude et de Construction de Moteurs d'Aviation. His experience in these organizations has contributed to his expertise in the field of composite materials.
Collaborations
Cretegny has collaborated with notable individuals in his field, including Peter Wolki and Emmanuel Edeline. These partnerships have likely enriched his work and led to further advancements in his inventions.
Conclusion
Jean-Francois Cretegny's contributions to the field of composite materials are noteworthy, with his innovative patents paving the way for advancements in manufacturing techniques. His work continues to influence the industry and showcases the importance of innovation in engineering.