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For the Inventor, By the Inventor

Carlsbad, CA, United States of America

Energyield LLC

Calculating rank
USPTO Granted Patents = 13

% Expired Patents = 7.7

Forward Citations = 111

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2 inventors (with patents filed for the assignee):

goldMedal Robert Hotto (13 out of 49 patents)

silverMedal David Perez (1 out of 2 patents)


13 patents:

1. 12571370 - Rotatable blade apparatus with individually adjustable blades (2026-03-10),
2. 11454212 - Rotatable blade apparatus with individually adjustable blades (2022-09-27),
3. 11444302 - Vortex tube reformer for hydrogen production, separation, and integrated use (2022-09-13),
4. 10190572 - Rotatable blade apparatus with individually adjustable blades (2019-01-29),
5. 9913321 - Energy harvesting container (2018-03-06),
6. 9843062 - Vortex tube reformer for hydrogen production, separation, and integrated use (2017-12-12),
7. 9840413 - Integrated reformer and syngas separator (2017-12-12),
8. 9297264 - Rotatable blade apparatus with individually adjustable blades (2016-03-29),
9. 9059440 - Enhanced efficiency turbine (2015-06-16),
10. 8608441 - Rotatable blade apparatus with individually adjustable blades (2013-12-17),
11. 8201738 - Electronic voting system (2012-06-19),
12. 8047006 - Enhanced efficiency turbine (2011-11-01),
13. 7818969 - Enhanced efficiency turbine (2010-10-26),
Company Overview
Energyield LLC, based in Carlsbad, California, specializes in advanced energy solutions, focusing on the development of innovative technologies aimed at enhancing energy efficiency and sustainability. The company is dedicated to creating cutting-edge products and services that address the evolving needs of the energy sector. With a commitment to research and development, Energyield leverages its expertise to contribute to the transition towards cleaner energy sources and improved energy management practices.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

13 Patents

#97 in Carlsbad, CA

#5,664 in California

#23,863 in US

#45,104 in the World

Carlsbad, CA (US)
Carlsbad, CA, United States of America

Energyield LLC

Forward Citations = 111

2 inventors:

goldMedal Robert Hotto (13 out of 49 patents)

silverMedal David Perez (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Energyield LLC. Retrieved from https://idiyas.com/company/energyield

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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