This inventor holds 1 USPTO granted patent. Top assignees: Centre National De La Recherche Scientifique, Safran Helicopter Engines, Universite Dé Lorraine. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:


Years Active: 2026
Title: François Joseph Paul Lelong: Advancing Aircraft Electric and Hybrid Propulsion
Introduction
François Joseph Paul Lelong is an inventor associated with Moissy-Cramayel, France. His patent work addresses aircraft electric and hybrid propulsion, with a focus on energy distribution and protection across multiple propulsion lines.
Latest Patents
Lelong is associated with 1 patent, titled “Aircraft Electric or Hybrid Propulsion Architecture.” The invention describes an aircraft propulsion architecture with at least two propulsion lines. Each line includes at least one electric motor supplied by at least two energy sources through at least two energy supply paths. The paths use energy inverters and electrical protection, while high-voltage direct-current (HVDC) buses distribute power to the motors. The architecture uses at least partially dissimilar energy supply paths, preferably making them completely dissimilar.
Career Highlights
Lelong’s listed professional affiliations include Safran Helicopter Engines and Université de Lorraine. His patent reflects work on electrical architectures intended to support aircraft propulsion using electric or hybrid systems.
Collaborations
His listed collaborators include Pierre Alain Jean-Marie Darfeuil and Serge Lionel Pierfederici. Their names are associated with the patent’s development.
Conclusion
François Joseph Paul Lelong’s patent focuses on distributing and protecting electrical power across aircraft propulsion lines, contributing to the development of electric and hybrid aviation systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile