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Napa, CA, United States of America

Clean Power Research, L.l.c.

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USPTO Granted Patents = 88

Forward Citations = 272

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6 inventors (with patents filed for the assignee):

Thomas E Hoff (83 out of 87 patents)

Jeffrey Ressler (5 out of 5 patents)

Scott Tewel (5 out of 5 patents)

4. Robert Orleth (5 out of 7 patents)

5. Jeremy Stone (5 out of 5 patents)

6. Upama Nakarmi (1 out of 1 patent)

Core Competencies:

Photovoltaic Energy

Building Thermal Performance

Energy Consumption Modeling

Renewable Power Systems

HVAC Optimization

Seasonal Fuel Consumption

Energy Load Estimation

Building Energy Reduction

Power Interconnection

Energy Fleet Management

Thermal Performance Estimation

Energy Auditing

88 patents: Sort by Forward Citations

1. 12651215 - System and method for personal energy consumption change payback determination using distributed computational resources (2026-06-09),

2. 12626035 - Implementation of building energy consumption reduction using distributed computational resources (2026-05-12),

3. 12619801 - System and method for a post-modification building balance point temperature determination with the aid of a digital computer (2026-05-05),

4. 12586137 - System and method for seasonal energy consumption determination using verified energy loads with the aid of a digital computer (2026-03-24),

5. 12554907 - System and method for building water-heating-based gross energy load modification modeling with the aid of a digital computer (2026-02-17),

6. 12512671 - System and method for inferring photovoltaic system specifications with the aid of a digital computer (2025-12-30),

7. 12499392 - System and method for empirical electrical-space-heating-based building overall thermal performance estimation with the aid of a digital computer (2025-12-16),

8. 12400053 - System and method for photovoltaic system configuration specification identification with the aid of a digital computer (2025-08-26),

9. 12320534 - System for building balance-point-based seasonal fuel consumption forecasting with the aid of a digital computer (2025-06-03),

10. 12307400 - System and method for renewable power system interconnection workflow generation and execution with the aid of a digital computer (2025-05-20),

11. 12242022 - System and method for estimating photovoltaic energy through empirical derivation with the aid of a digital computer (2025-03-04),

12. 12124532 - System and method for degradation-based service prediction with the aid of a digital computer (2024-10-22),

13. 12051016 - System and method for personal energy-related changes payback evaluation with the aid of a digital computer (2024-07-30),

14. 12032884 - System and method for facilitating implementation of building equipment energy consumption reduction with the aid of a digital computer (2024-07-09),

15. 12031965 - System and method for monitoring occupancy of a building using a CO2 concentration monitoring device (2024-07-09),

Company Overview

Clean Power Research, L.L.C., based in Napa, California, specializes in advanced photovoltaic systems and renewable energy solutions. The company focuses on enhancing energy efficiency through innovative technologies related to building thermal performance, energy consumption modeling, and HVAC optimization. Their expertise extends to seasonal fuel consumption and energy load estimation, contributing to effective building energy reduction strategies. Clean Power Research is dedicated to supporting the transition to sustainable energy systems through its comprehensive research and development efforts.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

88 Patents

#1 in Napa, CA

#986 in California

#4,241 in US

#8,695 in the World

Napa, CA, United States of America

Clean Power Research, L.l.c.

Forward Citations = 272

6 inventors:

Thomas E Hoff (83 out of 87 patents)

Jeffrey Ressler (5 out of 5 patents)

Scott Tewel (5 out of 5 patents)

4. Robert Orleth (5 out of 7 patents)

5. Jeremy Stone (5 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Clean Power Research, L.l.c.. Retrieved from https://idiyas.com/company/clean-power-research

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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