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For the Inventor, By the Inventor

Sartrouville, France

Pierre Duret

This inventor holds 23 USPTO granted patents and 1 EPO patent, primarily in Internal-Combustion Engines. Top assignees: Institut Francais Du Pe'trole, Automobiles Citroen, Automobiles, Peugeot. Active years: 1986-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Pierre Duret. Retrieved from https://idiyas.com/inventor/pierre-duret

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

Calculating rank
USPTO Granted Patents = 23

% Patents Active = 95.7


Average Co-Inventor Count = 1.3

ph-index = 8

Forward Citations = 153(Granted Patents)


Location History:

  • Saint-Germain, FR (1989)
  • rue du Conservatoire, FR (1991)
  • Paris, FR (1986 - 1993)
  • Sartrouville, FR (1993 - 2009)

Company Filing History:

goldMedal21 out of 2,424 
 
Institut Francais Du Pe'trole
 patents
silverMedal2 out of 144 
 
Automobiles Citroen
 patents
bronzeMedal2 out of 285 
 
Automobiles, Peugeot
 patents
4. 1 out of 1 
 
Institut Francais Du Petrole Automobiles Peugeot & Automobiles Citroen
 patent
5. 1 out of 84 
 
Institute Francais Du Petrole
 patents
where one patent can have more than one assignee

Years Active: 1986-2009

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Areas of Expertise:
Internal-Combustion Engine
Self-Ignition
Four-Stroke Engine
Two-Stroke Engine
Pneumatic Injection
Fuel Mixture
Exhaust Catalyst
Depollution Process
Pressure Storage
Injection Device
Rotary Valves
Charge Control
23 patents (USPTO):Explore Patents
1. 7556027 - Internal-combustion engine control method and engine using same (2009-07-07),
2. 6135088 - Controlled self-ignition 4-stroke engine operating process (2000-10-24),
3. 6082342 - Process for controlling self-ignition in a 4-stroke engine (2000-07-04),
4. 6035815 - Process for delivering and for metering at least one additive to the (2000-03-14),
5. 5839887 - Internal-combustion engine having a specific-purpose pressure storage (1998-11-24),
6. 5809949 - Two-stroke engine with improved injection device and associated (1998-09-22),
7. 5775274 - Two-stroke engine with air-blast fuel mixture injection (1998-07-07),
8. 5749333 - Two-stroke internal-combustion engine depollution process and associated (1998-05-12),
9. 5433073 - Exhaust line with catalyst for two-stroke internal-combustion engines (1995-07-18),
10. 5419289 - Device for controlling the pneumatic injection of a carbureted mixture (1995-05-30),
11. 5363819 - Pneumatic-injection two-stroke engine with first order balancing of the (1994-11-15),
12. 5285753 - Two-stroke engine with selective control of the charge introduced in the (1994-02-15),
13. 5273004 - Two-stroke engine with rotary valves and uses of such an engine (1993-12-28),
14. 5215064 - Method for the pneumatic injection of fuel into a two stroke engine and (1993-06-01),
15. 5062396 - Device and method for introducing a carburetted mixture under presssure (1991-11-05),

Title: Pierre Duret: Innovating Internal Combustion Engine Technologies

Introduction

Pierre Duret, hailing from Sartrouville, France, is an accomplished inventor with an impressive portfolio of 23 patents. His work predominantly revolves around innovative methods for controlling internal combustion engines, reflecting his significant contributions to the automotive industry.

Latest Patents

Among Pierre's latest patents is an advanced method for controlling an internal combustion engine. This invention encompasses a system involving an exhaust valve and dedicated control means to regulate operation during varying load conditions. His methodology greatly aims to enhance the efficiency and effectiveness of engine performance. Another notable patent is the controlled self-ignition process for a four-stroke internal combustion engine. This innovative approach involves recirculating exhaust gases into the combustion chamber, which promotes a stratified mixture of air and fuel, ultimately leading to a cleaner and more efficient combustion through self-ignition.

Career Highlights

Throughout his career, Pierre Duret has been associated with esteemed organizations, notably the Institut Français Du Pétrole and Automobiles Peugeot. His engagement with these companies has provided him with invaluable experience and insights into the intricacies of engine technology and innovation.

Collaborations

Pierre has collaborated with notable individuals in his field, including Gaetan Monnier and Stephane Venturi. These partnerships have often sparked synergy in research and development efforts, leading to groundbreaking advancements in engine technology.

Conclusion

Pierre Duret stands out as an influential figure in the realm of internal combustion engine innovations. With a robust portfolio of patents and numerous contributions to the automotive sector, he continues to pave the way for future advancements in engine control methods and efficiency. His dedication to innovation not only reflects his expertise but also reinforces the importance of continuous improvement in automotive technologies.

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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