Saint-Mandé, France

Denis Chretien

This inventor holds 6 USPTO granted patents. Top assignees: L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des, L'air Liquide, Societe Anonyme Pour L'exploitation Des Procedes Georges. Active years: 1991-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Denis Chretien. Retrieved from https://idiyas.com/inventor/denis-chretien

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 1.2

ph-index = 5

Forward Citations = 56(Granted Patents)


Company Filing History:


Years Active: 1991-1995

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6 patents (USPTO):Explore Patents

Title: Innovations of Denis Chretien in Air Separation Technologies

Introduction

Denis Chretien is a notable inventor based in Saint Mande, France. He has made significant contributions to the field of air separation technologies, holding a total of six patents. His work primarily focuses on processes and installations for the production of oxygen and nitrogen.

Latest Patents

Chretien's latest patents include innovative processes and installations for the production of a variable flow rate of at least one principal constituent of air under pressure. One of his notable inventions involves withdrawing a constituent in liquid phase from an air distillation apparatus. This liquid is then brought to a vaporization pressure and vaporized through heat exchange with a calorific fluid under high pressure. The flow rate of the product constituent is adjustable by modifying the flow rate of the liquid to be vaporized and the vaporization pressure. The gas resulting from this vaporization is compressed to the production pressure, showcasing Chretien's expertise in optimizing air separation processes.

Career Highlights

Throughout his career, Denis Chretien has worked with prominent companies in the industry. He has been associated with L'Air Liquide and the Société Anonyme Pour L'Étude Et L'Exploitation Des Procédés Georges. His experience in these organizations has contributed to his development as an inventor and innovator in air separation technologies.

Collaborations

Chretien has collaborated with notable professionals in his field, including Jean-Louis Girault and Bernard Darredeau. These collaborations have likely enriched his work and led to advancements in the technologies he has developed.

Conclusion

Denis Chretien's contributions to air separation technologies through his patents and collaborations highlight his role as an influential inventor in the industry. His innovative processes for the production of oxygen and nitrogen continue to impact the field significantly.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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