Company Filing History:
3 out of 175 
1 out of 32 
1 out of 1 Years Active: 1978-1997
Title: The Innovative Contributions of Francois Dujardin
Introduction
Francois Dujardin is a notable inventor based in Brussels, Belgium. He has made significant contributions to the field of chemical polishing, particularly in the treatment of stainless steel surfaces. With a total of 5 patents to his name, Dujardin's work has had a lasting impact on industrial processes.
Latest Patents
Dujardin's latest patents include innovative methods for chemical polishing of stainless steel surfaces. One of his patents describes a process for chemical polishing of austenitic stainless steel surfaces using specific chemical baths. These baths contain an aqueous solution with a mixture of hydrochloric acid, nitric acid, and phosphoric acid, along with an optionally substituted hydroxybenzoic acid, at least one quaternary ammonium salt, and an additive chosen from perchloric acid and water-soluble salts of perchloric acid. Another patent focuses on baths for the chemical polishing of stainless steel surfaces, which include a mixture of hydrochloric acid, phosphoric acid, nitric acid, and sulphosal cyclic acid, along with at least one abietic compound.
Career Highlights
Throughout his career, Dujardin has worked with prominent companies such as Solvay & Cie and Interox. His experience in these organizations has allowed him to refine his expertise in chemical processes and contribute to advancements in the industry.
Collaborations
Dujardin has collaborated with notable colleagues, including Daniel Tytgat and Marianne Reignier. These partnerships have fostered innovation and have been instrumental in the development of his patented processes.
Conclusion
Francois Dujardin's contributions to the field of chemical polishing demonstrate his innovative spirit and dedication to advancing industrial processes. His patents reflect a deep understanding of chemical interactions and their applications in improving stainless steel treatment.