For the Inventor, By the Inventor

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Davidson, NC, United States of America

Trane International Inc.

USPTO Granted Patents = 796

CIPO Patents = 5

EPO Patents = 120

Trademarks = 102

Forward Citations = 3,421

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671 inventors (with patents filed for the assignee):

Stephen Anthony Kujak (36 out of 42 patents)

Jay H Johnson (31 out of 31 patents)

Joel C VanderZee (26 out of 28 patents)

4. Stephen Stewart Hancock (26 out of 37 patents)

5. David Marshall Foye (24 out of 34 patents)

6. Nathan Thomas West (22 out of 22 patents)

7. Jeffrey Lee Stewart (20 out of 23 patents)

8. Wayne N Kraft (18 out of 21 patents)

9. Youssef A Jaber (17 out of 17 patents)

10. Raymond Walter Rite (17 out of 17 patents)

11. Kenneth J Schultz (17 out of 24 patents)

12. Lee R Cline (16 out of 17 patents)

13. Christopher Blake Smith (16 out of 16 patents)

14. Robert Wayne Helt (16 out of 31 patents)

15. Scott Joseph Smerud (16 out of 19 patents)

Core Competencies:

HVAC Systems

Scroll Compressors

Refrigerant Recovery

Variable Frequency Drives

Sound Dampening

Indoor Air Quality

Heat Pump Control

Energy Optimization

Gas Bearing Management

Temperature Control

Demand Response

Refrigeration Systems

796 patents: Sort by Forward Citations

1. 12523401 - Refrigerant recovery system and recovery cart thereof (2026-01-13),

2. 12516839 - Ventilation air valve, and air conditioning unit thereof (2026-01-06),

3. 12510266 - Fan powered exhaust hood (2025-12-30),

4. 12504190 - Air conditioning unit with a leak ventilation inducer (2025-12-23),

5. 12504025 - Interstage capacity control valve with separate drive and stabilization linkages (2025-12-23),

6. 12500480 - Supplying AC electricity from a photovoltaic system without an electronic power inverter (2025-12-16),

7. 12498131 - Prioritizing efficient operation over satisfying an operational demand (2025-12-16),

8. 12487008 - Method of commissioning an HVAC system (2025-12-02),

9. 12474083 - Scroll compressor with intermediate injection (2025-11-18),

10. 12473920 - Lubrication system for compressors (2025-11-18),

11. 12467668 - Refrigerant recovery and repurposing (2025-11-11),

12. 12451827 - Variable frequency drive system with medium voltage input and low voltage output (2025-10-21),

13. 12449159 - Tunable acoustic metamaterials for sound dampening of HVAC equipment (2025-10-21),

14. 12429248 - Air handling unit (2025-09-30),

15. 12422151 - Sound and vibration damping enclosures for refrigerant compressors of climate control systems (2025-09-23),

Trane International Inc. is a global provider of heating, ventilation, and air conditioning (HVAC) systems. With a rich history spanning over a century, Trane has become a trusted name in the industry, known for its innovative solutions, energy-efficient products, and exceptional customer service. The company offers a comprehensive range of HVAC systems for residential, commercial, and industrial applications. From high-performance air conditioners to advanced heating solutions, Trane aims to deliver superior comfort, efficiency, and sustainability in every project. Through a global network of dealers and distributors, Trane serves customers in over 100 countries, providing reliable and cutting-edge HVAC solutions to meet various needs and requirements.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 13 2026

796 Patents

#2 in Davidson, NC

#16 in North Carolina

#614 in US

#1,229 in the World

Davidson, NC, United States of America

Trane International Inc.

Forward Citations = 3,421

671 inventors:

Stephen Anthony Kujak (36 out of 42 patents)

Jay H Johnson (31 out of 31 patents)

Joel C VanderZee (26 out of 28 patents)

4. Stephen Stewart Hancock (26 out of 37 patents)

5. David Marshall Foye (24 out of 34 patents)

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