Company Filing History:
4 out of 733 
1 out of 704 
1 out of 22 Years Active: 2024-2025
Title: Andrew Leroy Hjortland: Innovator in Energy Efficient Technologies
Introduction
Andrew Leroy Hjortland, an accomplished inventor based in Stoughton, WI, has made significant contributions to the field of energy-efficient systems. With a total of three patents, he focuses primarily on innovative solutions for heating, ventilation, and air conditioning (HVAC) systems.
Latest Patents
Hjortland's latest inventions include two notable patents that target improvements in energy efficiency. The first patent is for "Energy Efficient Heat Pump Systems and Methods," which outlines an advanced heat pump that consists of a working fluid circuit, first and second heat exchangers, and a strategically placed compressor. This design aims to enhance the energy efficiency of HVAC systems by optimizing the flow of working fluid.
The second patent, titled "Energy Efficient Heat Pump with Flow Regulation System," encompasses a more intricate design involving multiple compressors. This system features separate suction conduits and a control valve designed to manage fluid flow efficiently, thereby improving the overall functioning of HVAC systems.
Career Highlights
Andrew has held positions at reputable companies, including Tyco Fire & Security and Johnson Controls Tyco IP Holdings LLP. His professional journey reflects a commitment to innovation in the HVAC field, showcasing a blend of practical engineering and design capabilities that have earned him recognition through his patents.
Collaborations
Throughout his career, Hjortland has worked alongside talented colleagues such as Jonathan D. Douglas and Jeremy Ryan Smith. These collaborations indicate a shared pursuit of innovation and a collective effort to advance technologies in HVAC systems.
Conclusion
Andrew Leroy Hjortland's contributions to energy-efficient technologies through his patents highlight his expertise as an inventor. His work continues to inspire advancements in the HVAC industry, reflecting a dedicated journey toward creating sustainable and efficient heating solutions.