David Leroy Hagen

This inventor holds 22 USPTO granted patents and 2 published patent applications, plus 7 CIPO patents, primarily in Combustion Technology. Top assignees: Vast Power Portfolio, LLC, Morgan Aircraft, LLC, Vast Holdings, LLC. Active years: 2008-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David Leroy Hagen. Retrieved from https://idiyas.com/inventor/david-leroy-hagen

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

USPTO Granted Patents = 22 (Patent Applications = 2)

% Patents Active = 81.8

CIPO Patents = 7 (Patent Applications = 1)

Average Co-Inventor Count = 2.0

ph-index = 12

Forward Citations = 818(Granted Patents)

Company Filing History:

14 out of 15

Vast Power Portfolio, LLC

Vast Power Systems, Inc.

patent

5. 3 out of 834,570

Other

patents

Years Active: 2008-2017

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Areas of Expertise:

Low Emissions

Combustion Apparatus

Thermodynamic Cycles

Fluid Recovery

Aircraft Attitude Control

Strain Relief

Thermogenic Remediation

Modular Antenna

22 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9777923 - Low emissions combustion apparatus and method (2017-10-03),

2. 9586827 - CO2 producing calciner (2017-03-07),

3. 9441464 - Bendable strain relief fluid filter liner, method and apparatus (2016-09-13),

4. 9303493 - Method and apparatus for strain relief in thermal liners for fluid transfer (2016-04-05),

5. 9254729 - Partial load combustion cycles (2016-02-09),

6. 8631657 - Thermodynamic cycles with thermal diluent (2014-01-21),

7. 8613598 - Wet compression apparatus and method (2013-12-24),

8. 8561702 - Hot fluid recovery of heavy oil with steam and carbon dioxide (2013-10-22),

9. 8475160 - Low emissions combustion apparatus and method (2013-07-02),

10. 8302903 - Aircraft attitude control configuration (2012-11-06),

11. 8262343 - Wet compression apparatus and method (2012-09-11),

12. 8192688 - Trifluid reactor (2012-06-05),

13. 8162568 - Thermogenerator to remediate contaminated sites (2012-04-24),

14. 8136740 - Thermodynamic cycles using thermal diluent (2012-03-20),

15. 8074925 - Aircraft attitude control configuration (2011-12-13),

Title: David Leroy Hagen: Innovating Low Emissions Combustion Technologies

Introduction

David Leroy Hagen, based in Goshen, Indiana, has made significant contributions to the field of combustion technologies, boasting an impressive portfolio of 22 patents. His expertise in clean combustion methods positions him as a leading innovator in reducing harmful emissions.

Latest Patents

Hagen's latest patents include groundbreaking inventions aimed at revolutionizing combustion processes. One such patent is for a "Low emissions combustion apparatus and method," which delivers and combusts a mixture of fuel, oxidant, and aqueous diluent across multiple combustion and equilibration regions. This innovation effectively reduces carbon monoxide (CO) and nitrogen oxides (NOx) emissions to below 25 parts per million by volume dry (ppmvd), with aspirations to achieve levels even lower than 3 ppmvd at 15% O.

Another notable patent is the "CO2 producing calciner," which outlines a sophisticated system for calcining crushed carbonate. This system efficiently discharges alkaline oxide and delivers an enhancing fluid rich in CO2. It features a pressurized insulated calciner with various manifolds and a heat exchanger to optimize combustion fluid heat exchange, ensuring streamlined operations while maximizing emission reductions.

Career Highlights

Throughout his career, David Hagen has collaborated with various organizations, including Vast Power Portfolio, LLC and Morgan Aircraft, LLC. His work with these companies has been instrumental in the development of innovative technologies focused on sustainability and efficiency in combustion processes.

Collaborations

Hagen has also partnered with notable peers such as Gary Ginter and Bill Goheen, pooling their expertise to enhance the effectiveness of their innovative projects. Their collaborative efforts in addressing environmental concerns through advanced combustion technologies are commendable.

Conclusion

David Leroy Hagen's dedication to innovation in low emissions combustion technologies illustrates his commitment to sustainability and environmental protection. With an impressive portfolio of patents and valuable industry collaborations, Hagen continues to pave the way toward cleaner and more efficient combustion methods. His work not only contributes to advancements in technology but also plays a crucial role in reducing the environmental impact of combustion processes.

Profile summary based on public USPTO records.