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Temecula, CA, United States of America

Hno Greenfuels, Inc.

USPTO Granted Patents = 12

% Expired Patents = 83.3

Trademarks = 2

Forward Citations = 39

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1 inventor (with patents filed for the assignee):

Donald Wade Owens (12 out of 15 patents)

12 patents: Sort by Forward Citations

1. 9574492 - Portable hydrogen supplemental system and method for lowering particulate matter and other emissions in diesel engines at idle (2017-02-21),

2. 9476357 - Method and apparatus for increasing combustion efficiency and reducing particulate matter emissions in jet engines (2016-10-25),

3. 9453457 - Hydrogen supplemental system for on-demand hydrogen generation for internal combustion engines (2016-09-27),

4. 8784619 - Hydrogen supplemental system for on-demand hydrogen generation for internal combustion engines (2014-07-22),

5. 8757107 - Hydrogen supplemental system for on-demand hydrogen generation for internal combustion engines (2014-06-24),

6. 8499722 - Hydrogen supplemental system for on-demand hydrogen generation for internal combustion engines (2013-08-06),

7. 8454808 - Hydrogen supplemental system for on-demand hydrogen generation for internal combustion engines (2013-06-04),

8. 8449754 - Hydrogen supplemental system for on-demand hydrogen generation for internal combustion engines (2013-05-28),

9. 8449736 - Hydrogen supplemental system for on-demand hydrogen generation for internal combustion engines (2013-05-28),

10. 8449735 - Hydrogen supplemental system for on-demand hydrogen generation for internal combustion engines (2013-05-28),

11. 8449734 - Hydrogen supplemental system for on-demand hydrogen generation for internal combustion engines (2013-05-28),

12. 8449733 - Hydrogen supplemental system for on-demand hydrogen generation for internal combustion engines (2013-05-28),

Company Overview

Hno Greenfuels, Inc. is a pioneering company based in Temecula, California, specializing in the development and production of advanced green fuel technologies. The organization focuses on innovative solutions for sustainable energy, aiming to reduce environmental impact through cleaner fuel alternatives. Hno Greenfuels is dedicated to research in renewable energy sources, contributing to the transition towards a more sustainable future in the energy sector. Its efforts are aligned with global initiatives to promote eco-friendly practices and reduce carbon emissions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

12 Patents

#11 in Temecula, CA

#6,061 in California

#25,557 in US

#48,163 in the World

Temecula, CA, United States of America

Hno Greenfuels, Inc.

Forward Citations = 39

1 inventor:

Donald Wade Owens (12 out of 15 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hno Greenfuels, Inc.. Retrieved from https://idiyas.com/company/hno-greenfuels

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

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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