Inventor · disambiguated record
Shitong Zha
Also filed as: ZHA SHITONG
66 granted patents·10 pending applications·156 citations·filing 2008–2025
98Inventor score
Top patents by PatentIndex Score
76 records- 0197US11988423B2Cooling systemHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2021·Granted May 21, 2024·2 cites·17 claims
- 0295US9657977B2Cascade refrigeration system with modular ammonia chiller unitsHILL PHOENIX INC·Filed 2016·Granted May 23, 2017·20 cites·20 claims
- 0394US11209199B2Cooling systemHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2019·Granted Dec 28, 2021·4 cites·17 claims
- 0494US9470435B2Modular CO2 refrigeration systemHILL PHOENIX INC·Filed 2013·Granted Oct 18, 2016·18 cites·29 claims
- 0592US11656009B2Cooling system with oil return to accumulatorHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2022·Granted May 23, 2023·1 cites·17 claims
- 0692US10782055B2Cooling systemHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2018·Granted Sep 22, 2020·5 cites·20 claims
- 0791US10352604B2System for controlling a refrigeration system with a parallel compressorHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2016·Granted Jul 16, 2019·5 cites·19 claims
- 0891US9664424B2Cascade refrigeration system with modular ammonia chiller unitsHILL PHOENIX INC·Filed 2012·Granted May 30, 2017·12 cites·16 claims
- 0990US11473814B2Integrated cooling system with flooded air conditioning heat exchangerHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2019·Granted Oct 18, 2022·4 cites·20 claims
- 1090US11384969B2Cooling system with oil return to oil reservoirHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2020·Granted Jul 12, 2022·2 cites·20 claims
- 1190US11371756B2Cooling system with oil return to accumulatorHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2020·Granted Jun 28, 2022·2 cites·20 claims
- 1290US10496108B2Cooling system flood prevention toolHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2017·Granted Dec 3, 2019·6 cites·33 claims
- 1390US10036580B2Multi-stage system for cooling a refrigerantLENNOX IND INC·Filed 2017·Granted Jul 31, 2018·4 cites·20 claims
- 1489US12352476B2Cooling systemHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2024·Granted Jul 8, 2025·0 cites·14 claims
- 1589US11933527B2Cooling system with oil return to accumulatorHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2020·Granted Mar 19, 2024·2 cites·20 claims
- 1689US10365023B2Refrigeration system with integrated air conditioning by parallel solenoid valves and check valveHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2017·Granted Jul 30, 2019·4 cites·18 claims
- 1789US8631666B2Modular CO2 refrigeration systemHINDE DAVID K·Filed 2008·Granted Jan 21, 2014·24 cites·5 claims
- 1888US9541311B2Cascade refrigeration system with modular ammonia chiller unitsHINDE DAVID K·Filed 2010·Granted Jan 10, 2017·13 cites·26 claims
- 1988US2025314406A1Cooling systemHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2025·Application pending·0 cites
- 2087US9709302B2Refrigeration system with absorption coolingHILL PHOENIX INC·Filed 2013·Granted Jul 18, 2017·11 cites·10 claims
- 2186US12158292B2Cooling system with oil return to accumulatorHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2023·Granted Dec 3, 2024·0 cites·20 claims
- 2286US11187445B2Cooling systemHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2018·Granted Nov 30, 2021·4 cites·20 claims
- 2386US11085681B2Cooling systemHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2019·Granted Aug 10, 2021·2 cites·20 claims
- 2484US11835272B2Cooling system with oil return to accumulatorHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2023·Granted Dec 5, 2023·0 cites·20 claims
- 2584US2025264255A1Hot gas defrost using medium temperature discharge gasHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2025·Application pending·0 cites
- 2684US2025271187A1Hot gas defrost using medium temperature discharge gasHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2025·Application pending·0 cites
- 2783US12078391B2Cooling system with oil return to oil reservoirHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2023·Granted Sep 3, 2024·0 cites·20 claims
- 2883US10808975B2Cooling systemHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2018·Granted Oct 20, 2020·2 cites·18 claims
- 2982US11149997B2Cooling system with vertical alignmentHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2020·Granted Oct 19, 2021·1 cites·20 claims
- 3082US2025389468A1Refrigeration system with an oil drain conduit and methods of useHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2025·Application pending·0 cites
- 3181US12264858B2Cooling system with oil return to accumulatorHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2024·Granted Apr 1, 2025·0 cites·20 claims
- 3281US11879675B2Cooling system with flooded low side heat exchangersHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2020·Granted Jan 23, 2024·1 cites·17 claims
- 3380US11802718B2Thermal storage of carbon dioxide system for power outageHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2022·Granted Oct 31, 2023·0 cites·10 claims
- 3480US11754322B2Thermal storage of carbon dioxide system for power outageHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2022·Granted Sep 12, 2023·0 cites·15 claims
- 3580US11287168B2Cooling system with vertical alignmentHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2020·Granted Mar 29, 2022·1 cites·20 claims
- 3680US10962266B2Cooling systemHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2018·Granted Mar 30, 2021·2 cites·18 claims
- 3780US10895411B2Cooling systemHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2018·Granted Jan 19, 2021·2 cites·20 claims
- 3879US12372283B2Hot gas defrost using medium temperature discharge gasHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2022·Granted Jul 29, 2025·0 cites·6 claims
- 3979US11692747B2Cooling system with oil return to oil reservoirHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2022·Granted Jul 4, 2023·0 cites·20 claims
- 4079US11268746B2Cooling system with partly flooded low side heat exchangerHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2019·Granted Mar 8, 2022·1 cites·20 claims
- 4177US11656004B2Cooling system with flexible evaporating temperatureHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2022·Granted May 23, 2023·0 cites·20 claims
- 4275US11619430B2Cooling system with vertical alignmentHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2022·Granted Apr 4, 2023·0 cites·20 claims
- 4375US11530853B2Cooling system with work recoveryHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2021·Granted Dec 20, 2022·0 cites·17 claims
- 4473US11604022B2Cooling system with compressor bypassHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2021·Granted Mar 14, 2023·0 cites·17 claims
- 4573US11428443B2Thermal storage of carbon dioxide system for power outageHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2020·Granted Aug 30, 2022·0 cites·13 claims
- 4672US12492852B2Refrigeration system with an oil drain conduit and methods of useHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2023·Granted Dec 9, 2025·0 cites·20 claims
- 4772US12203687B2Cooling system with flooded low side heat exchangersHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2023·Granted Jan 21, 2025·0 cites·20 claims
- 4872US11656012B2Cooling system with vertical alignmentHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2021·Granted May 23, 2023·0 cites·20 claims
- 4972US11009266B2Integrated refrigeration and air conditioning systemHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2017·Granted May 18, 2021·1 cites·15 claims
- 5071US12487023B2Refrigeration system and method of defrosting the sameHEATCRAFT REFRIGERATION PRODUCTS LLC·Filed 2023·Granted Dec 2, 2025·0 cites·17 claims
Showing the top 50 of 76 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →