This inventor holds 2 USPTO granted patents. Top assignees: Compagnie Francaise De Mokta, Minemet Recherche, Societe Nationale Des Poudres Et Explosifs. Active years: 1988-1992.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 4 
1 out of 7 
1 out of 212 Years Active: 1988-1992
Title: The Innovative Contributions of Francois Ricalens
Introduction
Francois Ricalens is a notable inventor based in Paris, France. He has made significant contributions to the field of chemistry, particularly in the development of diphosphonic derivatives for cation exchange applications. With a total of 2 patents, Ricalens has demonstrated his expertise and innovative spirit in his work.
Latest Patents
Ricalens' latest patents focus on the application of diphosphonic derivatives to cation exchange. One of his inventions involves new diphosphonic derivatives capable of extracting uranium from phosphoric acid with a P2O5 content ranging from 10 to 50 per unit. The formula for these new derivatives includes components where R is selected from hydrogen and alkyl radicals with 1 to 15 carbon atoms, and A is a mono- or di-substituted methylene radical. The total number of carbon atoms in the R and A groups ranges from 15 to 50, with specific conditions for when A is substituted by hydroxy or amino groups.
Another patent describes a water-insoluble ion exchange resin featuring a crosslinked, three-dimensional resin skeleton. This resin has an active group defined by a similar formula, where R and A are selected from various groups, ensuring effective binding to the resin skeleton.
Career Highlights
Throughout his career, Ricalens has worked with prominent companies such as Minemet Recherche and Société Nationale des Poudres et Explosifs. His experience in these organizations has contributed to his development as an inventor and researcher in the field of chemistry.
Collaborations
Ricalens has collaborated with various professionals, including his coworker Pierre Blanquet. These partnerships have likely enhanced his innovative capabilities and broadened his research horizons.
Conclusion
Francois Ricalens is a distinguished inventor whose work in diphosphonic derivatives has the potential to impact the field of cation exchange significantly. His contributions reflect a commitment to innovation and excellence in chemistry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile