For the Inventor, By the Inventor

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St. Louis, MO, United States of America

Nordyne, Inc.

USPTO Granted Patents = 20

% Expired Patents = 15.0

Trademarks = 15

Forward Citations = 549

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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),

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 based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

20 Patents

#107 in St. Louis, MO

#233 in Missouri

#16,368 in US

#31,196 in the World

St. Louis, MO, United States of America

Nordyne, Inc.

Forward Citations = 549

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)

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