AH

Andrew Leroy Hjortland

TG Tyco Fire & Security Gmbh: 4 patents #93 of 829Top 15%
HP Heatcraft Refrigeration Products: 1 patents #50 of 93Top 55%
JG Johnson Controls Light Commercial Ip Gmbh: 1 patents #14 of 51Top 30%
JL Johnson Controls Tyco Ip Holdings Llp: 1 patents #414 of 843Top 50%
📍 Stoughton, WI: #41 of 201 inventorsTop 25%
🗺 Wisconsin: #6,850 of 40,088 inventorsTop 20%
Overall (All Time): #675,053 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
12405022 Energy efficient heat pump with counterflow heat transfer arrangement 2025-09-02
12405024 Heat pump control systems and methods Roy Randall Crawford 2025-09-02
12379128 Energy efficient heat pump systems and methods Jonathan D. Douglas 2025-08-05
12215884 Energy efficient heat pump systems and methods Jeremy Ryan Smith 2025-02-04
12163700 Energy efficient heat pump with flow regulation system 2024-12-10
11906188 Energy efficient heat pump systems and methods Jonathan D. Douglas 2024-02-20
10808984 Self-optimizing subcooler control 2020-10-20