For the Inventor, By the Inventor

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St. Louis, MO, United States of America

Nordyne, Inc.

Calculating rank

USPTO Granted Patents = 20

% Expired Patents = 15.0

Trademarks = 15

Forward Citations = 554

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24 inventors (with patents filed for the assignee):

Allan J Reifel (9 out of 11 patents)

Jie Chen (5 out of 10 patents)

James E Roth (4 out of 8 patents)

4. Aaron D Herzon (3 out of 3 patents)

5. Wayne R Reedy (3 out of 16 patents)

6. David W Bales (3 out of 4 patents)

7. Yi Heng Chen (2 out of 77 patents)

8. David L Koesterer (2 out of 4 patents)

9. Russell W Hoeffken (2 out of 23 patents)

10. William F Raleigh (2 out of 14 patents)

11. Jacob Joseph Rede (1 out of 4 patents)

12. Justin W Hampton (1 out of 2 patents)

13. Siegfried J Weigl (1 out of 3 patents)

14. Craig A Thomas (1 out of 1 patent)

15. David W Garvin (1 out of 1 patent)

20 patents: Sort by Forward Citations

1. 8869545 - Defrosting a heat exchanger in a heat pump by diverting warm refrigerant to an exhaust header (2014-10-28),

2. 8756943 - Refrigerant charge management in a heat pump water heater (2014-06-24),

3. 8672733 - Ventilation airflow rate control (2014-03-18),

4. 8261568 - Condensing gas package unit with a tubular conduit for passing a condensate drain line (2012-09-11),

5. 8167610 - Premix furnace and methods of mixing air and fuel and improving combustion stability (2012-05-01),

6. 8011199 - HVAC control using discrete-speed thermostats and run times (2011-09-06),

7. 7784296 - System and method for controlling an air conditioner or heat pump (2010-08-31),

8. 7770806 - Temperature control in variable-capacity HVAC system (2010-08-10),

9. 6457653 - Blowerless air conditioning system (2002-10-01),

10. 5992410 - High-efficiency furnace for mobile homes (1999-11-30),

11. 5619864 - Compact heat pump (1997-04-15),

12. 5377503 - Convertible top single package heat pump unit (1995-01-03),

13. 5099914 - Louvered heat exchanger fin stock (1992-03-31),

14. 4924848 - High-efficiency furnace for mobile homes (1990-05-15),

15. D306341 - Vehicle rooftop air conditioner housing (1990-02-27),

Company Overview

Nordyne, Inc. is a prominent manufacturer specializing in heating, ventilation, and air conditioning (HVAC) systems. Based in St. Louis, Missouri, the company focuses on developing innovative climate control solutions that enhance energy efficiency and indoor comfort. With a commitment to quality and sustainability, Nordyne serves both residential and commercial markets, leveraging advanced technologies to meet evolving consumer needs and regulatory standards in the HVAC industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

20 Patents

#107 in St. Louis, MO

#233 in Missouri

#16,416 in US

#31,315 in the World

St. Louis, MO, United States of America

Nordyne, Inc.

Forward Citations = 554

24 inventors:

Allan J Reifel (9 out of 11 patents)

Jie Chen (5 out of 10 patents)

James E Roth (4 out of 8 patents)

4. Aaron D Herzon (3 out of 3 patents)

5. Wayne R Reedy (3 out of 16 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nordyne, Inc.. Retrieved from https://idiyas.com/company/nordyne

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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