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For the Inventor, By the Inventor

Coventry, United Kingdom

Jeffrey D Willis

This inventor holds 18 USPTO granted patents, primarily in Gas Turbine Technology. Top assignee: Rolls-Royce Corporation. Active years: 1982-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Jeffrey D Willis. Retrieved from https://idiyas.com/inventor/jeffrey-d-willis

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

Calculating rank
USPTO Granted Patents = 18

% Patents Active = 100.0

Average Co-Inventor Count = 1.5

ph-index = 14

Forward Citations = 622(Granted Patents)


Location History:

  • Earnsford Grange, GB (1984)
  • Ernsford Grange, GB (2001)
  • Conventry, GB (2001)
  • Coventry, GB (1982 - 2002)

Company Filing History:

goldMedal18 out of 6,043 
 
Rolls-Royce Corporation
 patents

Years Active: 1982-2002

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Areas of Expertise:
Gas Turbine Engine
Combustion Chamber
Fuel Injector
Dual Fuel Injectors
Combustion Equipment
Gas Fuel Injector
Staged Combustion
Air Mixing Passages
Premixed Homogeneous
Gaseous Fuel
Counter Swirling Arrays
Combustion Apparatus
18 patents (USPTO):Explore Patents
1. 6412282 - Combustion chamber (2002-07-02),
2. 6332313 - Combustion chamber with separate, valved air mixing passages for separate combustion zones (2001-12-25),
3. 6324828 - Gas turbine engine and a method of controlling a gas turbine engine (2001-12-04),
4. 6253555 - Combustion chamber comprising mixing ducts with fuel injectors varying in number and cross-sectional area (2001-07-03),
5. 6105360 - Gas turbine engine combustion chamber having premixed homogeneous (2000-08-22),
6. 5640851 - Gas turbine engine combustion chamber (1997-06-24),
7. 5628192 - Gas turbine engine combustion chamber (1997-05-13),
8. 5475979 - Gas turbine engine combustion chamber (1995-12-19),
9. 5319935 - Staged gas turbine combustion chamber with counter swirling arrays of (1994-06-14),
10. 5121608 - Gas turbine engine fuel burner (1992-06-16),
11. 4893475 - Combustion apparatus for a gas turbine (1990-01-16),
12. 4726192 - Dual fuel injectors (1988-02-23),
13. 4713938 - Gas turbine engine gaseous fuel injector (1987-12-22),
14. 4483138 - Gas fuel injector for wide range of calorific values (1984-11-20),
15. 4463568 - Fuel injector for gas turbine engines (1984-08-07),

Title: Innovations of Jeffrey D Willis

Introduction

Jeffrey D Willis is a prominent inventor based in Coventry, GB. He has made significant contributions to the field of combustion technology, holding a total of 18 patents. His work focuses on improving combustion efficiency and reducing harmful emissions.

Latest Patents

One of his latest innovations is a three-stage lean burn combustion chamber. This design comprises a primary combustion zone, a secondary combustion zone, and a tertiary combustion zone. Each of these zones is supplied with premixed fuel and air through respective fuel and air mixing ducts. The axial distribution of fuel in the combustion zones is engineered to minimize harmful vibrations within the combustion chamber. Another notable patent involves a combustion chamber assembly that features separate, valved air mixing passages for each combustion zone. This assembly includes primary, secondary, and tertiary fuel and air mixing ducts, which utilize axial flow swirlers and fuel injectors to enhance combustion efficiency.

Career Highlights

Jeffrey D Willis is currently employed at Rolls-Royce Corporation, where he continues to innovate in the field of combustion technology. His work has been instrumental in advancing the efficiency and effectiveness of combustion systems.

Collaborations

Throughout his career, Jeffrey has collaborated with notable colleagues, including Ian James Toon and James Melville. Their combined expertise has contributed to the development of cutting-edge technologies in combustion engineering.

Conclusion

Jeffrey D Willis is a distinguished inventor whose work in combustion technology has led to numerous patents and advancements in the field. His contributions continue to shape the future of efficient and environmentally friendly combustion systems.

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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