Inventor · disambiguated record
Andrew Leroy Hjortland
Also filed as: HJORTLAND ANDREW · HJORTLAND ANDREW LEROY
8 granted patents·3 pending applications·1 citations·filing 2019–2025
72Inventor score
Files withJohnson Controls Tyco IP Holdings LLP7TYCO FIRE & SECURITY GMBH3HEATCRAFT REFRIGERATION PRODUCTS LLC1
Top patents by PatentIndex Score
11 records- 0191US12379128B2Energy efficient heat pump systems and methodsTYCO FIRE & SECURITY GMBH·Filed 2024·Granted Aug 5, 2025·1 cites·19 claims
- 0278US2025102194A1Energy efficient heat pump with flow regulation systemTYCO FIRE & SECURITY GMBH·Filed 2024·Application pending·0 cites
- 0377US12163700B2Energy efficient heat pump with flow regulation systemJohnson Controls Tyco IP Holdings LLP·Filed 2023·Granted Dec 10, 2024·0 cites·20 claims
- 0475US11906188B2Energy efficient heat pump systems and methodsJohnson Controls Tyco IP Holdings LLP·Filed 2023·Granted Feb 20, 2024·0 cites·20 claims
- 0565US12405024B2Heat pump control systems and methodsJohnson Controls Tyco IP Holdings LLP·Filed 2023·Granted Sep 2, 2025·0 cites·20 claims
- 0664US12215884B2Energy efficient heat pump systems and methodsJohnson Controls Tyco IP Holdings LLP·Filed 2023·Granted Feb 4, 2025·0 cites·20 claims
- 0763US12504210B2Energy efficient heat pump with control system and compressor injectionJohnson Controls Tyco IP Holdings LLP·Filed 2023·Granted Dec 23, 2025·0 cites·18 claims
- 0858US2024068700A1Multi-circuit hvac systems and methodsJohnson Controls Tyco IP Holdings LLP·Filed 2023·Application pending·0 cites
- 0956US12405022B2Energy efficient heat pump with counterflow heat transfer arrangementJohnson Controls Tyco IP Holdings LLP·Filed 2023·Granted Sep 2, 2025·0 cites·20 claims
- 1056US2025257917A1Energy efficient heat pump with ejector systemTYCO FIRE & SECURITY GMBH·Filed 2025·Application pending·0 cites
- 1155US10808984B2Self-optimizing subcooler controlHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2019·Granted Oct 20, 2020·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →