This inventor holds 2 USPTO granted patents and 4 published patent applications. Top assignee: Trane International Inc.. Active years: 2026.
Company Filing History:
Years Active: 2026
Title: Daryl Keys: Innovator in HVAC Technology
Introduction
Daryl Keys is a notable inventor based in La Crosse, WI (US). He has made significant contributions to the field of heating, ventilation, air conditioning, and refrigeration (HVAC) technology. With a total of 2 patents, his work focuses on improving efficiency and functionality in HVAC systems.
Latest Patents
Daryl Keys holds two recent patents that showcase his innovative approach. The first patent is for a "Free Cooling System for Low Ambient Temperatures." This system includes a circulation path with a pump and one or more heaters. The pump circulates a process fluid when the system is deactivated, while the heaters ensure that the process fluid remains above freezing temperatures. The second patent is titled "Refrigerant Circuit Expansion Valve Control." This method involves operating an expansion valve in a refrigerant circuit, which includes a compressor, condenser, expansion valve, evaporator, and working fluid. The method determines a modified subcooling value based on various temperature readings and adjusts the expansion valve accordingly.
Career Highlights
Daryl Keys is currently employed at Trane International Inc., a leading company in HVAC solutions. His work at Trane has allowed him to apply his innovative ideas to real-world applications, enhancing the efficiency of HVAC systems.
Collaborations
Throughout his career, Daryl has collaborated with talented individuals such as Daniel Gorman and Jacob L Gregg. These collaborations have contributed to the development of advanced HVAC technologies.
Conclusion
Daryl Keys is a prominent inventor whose work in HVAC technology has led to significant advancements. His patents reflect his commitment to innovation and efficiency in the industry.