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For the Inventor, By the Inventor

Paris, France

Jean Le Foll

This inventor holds 5 USPTO granted patents. Top assignee: Thomson-Csf. Active years: 1982-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Jean Le Foll. Retrieved from https://idiyas.com/inventor/jean-le-foll

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

USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 3

Forward Citations = 20(Granted Patents)


Location History:

  • Paris, FR (1982 - 1988)
  • Montlhery, FR (1992 - 1995)

Company Filing History:

goldMedal5 out of 2,692 
 
Thomson-Csf
 patents

Years Active: 1982-1995

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5 patents (USPTO):Explore Patents
1. 5422652 - Waveguide with non-inclined radiating slots excited by flat metal plates (1995-06-06),
2. 5170174 - Patch-excited non-inclined radiating slot waveguide (1992-12-08),
3. 4774520 - Primary microwave source for a conical scanning antenna and an antenna (1988-09-27),
4. 4573054 - Excitation device for a dual band ultra-high frequency corrugated source (1986-02-25),
5. 4335387 - Radar antenna with rotating linear polarization designed to reduce (1982-06-15),

Title: Innovations of Jean Le Foll in Waveguide Technology

Introduction

Jean Le Foll is a notable inventor based in Paris, France. He has made significant contributions to the field of waveguide technology, holding a total of 5 patents. His work focuses on enhancing the efficiency and functionality of waveguides, which are essential components in various communication systems.

Latest Patents

Among his latest patents, one is titled "Waveguide with non-inclined radiating slots excited by flat metal plates." This invention involves a waveguide that features slots cut into a narrow wall, with pairs of metal flat plates positioned on each side of the slots. These plates modify the electrical field at the associated slot, allowing for effective excitation. The coupling value can be adjusted by modifying the size and position of the flat plates relative to the radiating slot. Another significant patent is the "Patch-excited non-inclined radiating slot waveguide." In this design, a printed circuit plate is positioned within the waveguide, featuring patches for coupling with the energy propagated in the waveguide. This innovation is particularly useful in array antennas.

Career Highlights

Jean Le Foll is associated with Thomson-CSF, a company known for its advancements in technology and innovation. His work at this organization has allowed him to explore and develop cutting-edge solutions in waveguide technology.

Collaborations

Throughout his career, Jean has collaborated with notable colleagues, including Jean Bouko and Francois Salvat. These collaborations have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Jean Le Foll's contributions to waveguide technology demonstrate his innovative spirit and dedication to advancing communication systems. His patents reflect a deep understanding of electrical engineering and a commitment to enhancing technological capabilities.

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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