This inventor holds 1 USPTO granted patent. Top assignee: Rhone-Poulenc Chimie. Active years: 1998.
Company Filing History:
Years Active: 1998
Title: The Innovative Contributions of Marcelle Janin
Introduction
Marcelle Janin is a notable inventor based in Lyons, France. He has made significant contributions to the field of chemistry, particularly in the area of phenolic compounds. His innovative work has led to the development of a unique patent that showcases his expertise and creativity.
Latest Patents
Marcelle Janin holds a patent for the "O-alkylation of phenolic compounds via rare earth orthophosphate." This invention allows for the selective preparation of carbocyclic and aliphatic ethers, such as anisole, quaicol, guaethol, p-methoxyphenol, and ethylene dioxybenzene. The process involves reacting a phenolic compound, such as phenol, hydroquinone, pyrocatechin, or naphthol, with an alcohol like methanol, ethanol, or isopropanol in the gaseous phase. This reaction occurs in the presence of a catalytically effective amount of a trivalent rare earth metal orthophosphate, such as lanthanum, cerium, or samarium orthophosphate, which may be doped with an alkali or alkaline earth metal, preferably cesium. This patent highlights his innovative approach to chemical synthesis and the potential applications of his work.
Career Highlights
Marcelle Janin is associated with Rhone-Poulenc Chimie, a company known for its advancements in chemical manufacturing and research. His role at the company has allowed him to further explore his interests in chemistry and contribute to various projects that push the boundaries of innovation.
Collaborations
Throughout his career, Marcelle has collaborated with talented individuals such as Laurent Gilbert and Anne-Marie Le Govic. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking solutions in the field of chemistry.
Conclusion
Marcelle Janin's contributions to the field of chemistry, particularly through his patent on the O-alkylation of phenolic compounds, demonstrate his innovative spirit and dedication to advancing scientific knowledge. His work continues to inspire future generations of inventors and researchers.