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San Rafael, CA, United States of America

Exergetic Systems, LLC

USPTO Granted Patents = 15

% Expired Patents = 66.7

CIPO Patents = 1

EPO Patents = 1

Forward Citations = 233

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2 inventors (with patents filed for the assignee):

Fred D Lang (15 out of 21 patents)

Gary Hoenig (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 8091361 - Method and apparatus for controlling the final feedwater temperature of a regenerative Rankine cycle using an exergetic heater system (2012-01-10),

2. 7809526 - Apparatus for the determination and evaluation of coal chemistry based on the genetics of fossil fuels (2010-10-05),

3. 7328132 - Input/Loss Method using the genetics of fossil fuels for determining fuel chemistry, calorific value and performance of a fossil-fired power plant (2008-02-05),

4. 7039555 - Method for detecting heat exchanger tube failures and their location when using input/loss performance monitoring of a recovery boiler (2006-05-02),

5. 6873933 - Method and apparatus for analyzing coal containing carbon dioxide producing mineral matter as effecting input/loss performance monitoring of a power plant (2005-03-29),

6. 6868368 - Method for improving the control of power plants when using input/loss performance monitoring (2005-03-15),

7. 6810358 - Method to synchronize data when used for input/loss performance monitoring of a power plant (2004-10-26),

8. 6799146 - Method for remote on-line advisory diagnostics and dynamic heat rate when used for input/loss performance monitoring of a power plant (2004-09-28),

9. 6745152 - Method for detecting heat exchanger tube failures when using input/loss performance monitoring of a power plant (2004-06-01),

10. 6714877 - Method for correcting combustion effluent data when used for input-loss performance monitoring of a power plant (2004-03-30),

11. 6691054 - F factor method for determining heat rate and emission rates of a fossil-fired system (2004-02-10),

12. 6651035 - Method for detecting heat exchanger tube failures and their location when using input/loss performance monitoring of a power plant (2003-11-18),

13. 6584429 - Input/loss method for determining boiler efficiency of a fossil-fired system (2003-06-24),

14. 6560563 - L factor method for determining heat rate of a fossil fired system based on effluent flow (2003-05-06),

15. 6522994 - Input/loss method for determining fuel flow, chemistry, heating value and performance of a fossil-fired system (2003-02-18),

Company Overview

Exergetic Systems, LLC, based in San Rafael, California, specializes in advanced energy systems and technologies. The company focuses on the development of innovative solutions aimed at enhancing energy efficiency and sustainability across various applications. With a commitment to research and development, Exergetic Systems is dedicated to pushing the boundaries of energy technology, contributing to a more sustainable future through its cutting-edge engineering and design capabilities.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

15 Patents

#9 in San Rafael, CA

#5,027 in California

#21,052 in US

#39,921 in the World

San Rafael, CA, United States of America

Exergetic Systems, LLC

Forward Citations = 233

2 inventors:

Fred D Lang (15 out of 21 patents)

Gary Hoenig (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Exergetic Systems, LLC. Retrieved from https://idiyas.com/company/exergetic-systems

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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