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For the Inventor, By the Inventor

Fosses, France

Jean L Dauvergne

This inventor holds 14 USPTO granted patents. Top assignees: Societe Anonyme Francaise Du Ferodo, Valeo Corporation, Valeo Societe Anonyme. Active years: 1980-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Jean L Dauvergne. Retrieved from https://idiyas.com/inventor/jean-l-dauvergne

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

USPTO Granted Patents = 14

% Patents Active = 100.0

Average Co-Inventor Count = 1.0

ph-index = 5

Forward Citations = 75(Granted Patents)


Location History:

  • Survilliers, FR (1980 - 1981)
  • Fosses, FR (1980 - 1984)

Company Filing History:

goldMedal12 out of 120 
 
Societe Anonyme Francaise Du Ferodo
 patents
silverMedal1 out of 645 
 
Valeo Corporation
 patents
bronzeMedal1 out of 7 
 
Valeo Societe Anonyme
 patents

Years Active: 1980-1984

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14 patents (USPTO):Explore Patents
1. 4459896 - Hydraulic distributor devices (1984-07-17),
2. 4449369 - Power assisted hydraulic control system (1984-05-22),
3. 4334713 - Hydraulic control system (1982-06-15),
4. 4326379 - Hydraulic control device for a motor vehicle braking circuit (1982-04-27),
5. 4325447 - Power-assisted steering device and the manufacture thereof (1982-04-20),
6. 4305251 - Assisted braking device (1981-12-15),
7. 4254691 - Assisted steering device for a vehicle (1981-03-10),
8. 4254623 - Hydraulic control system for brake device (1981-03-10),
9. 4253305 - Assisted braking device (1981-03-03),
10. 4252207 - Assisted steering device for a vehicle (1981-02-24),
11. 4241582 - Assisted braking device (1980-12-30),
12. 4232519 - Assisted braking device (1980-11-11),
13. 4218887 - Assisted braking device (1980-08-26),
14. 4214642 - Power-assisted steering device (1980-07-29),

Title: Innovations and Contributions of Jean L Dauvergne

Introduction

Jean L Dauvergne is a notable inventor based in Fosses, France. He has made significant contributions to the field of hydraulic systems, holding a total of 14 patents. His work has been instrumental in advancing technologies related to power-assisted steering and hydraulic control systems.

Latest Patents

Among his latest innovations are the hydraulic distributor devices and the power-assisted hydraulic control system. The hydraulic distributor device features two members that move relative to one another, either in rotary or translational movement, along a planar sliding interface. This design includes at least one narrow groove superficially provided in one of the members along the interface, which minimizes or eliminates the axial thrust generated by fluid pressure. This distributor device is particularly useful in power-assisted steering apparatus for vehicles.

The power-assisted hydraulic control system is designed for actuating clutches and brakes. It incorporates a master cylinder with a master piston that defines a control chamber, along with a hydraulic power assistance unit. The system includes a distributor that connects the power assistance unit with the hydraulic receiver controlling the brake or clutch unit. A slide valve within the distributor has a plunger that responds to pressures in both the control chamber and the receiver. Additionally, a bypass channel links the control chamber of the master cylinder to the pipeline connecting the operating port of the distributor to the receiver, featuring a bypass valve controlled by a spring to allow manual operation in case of

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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