Water quality monitoring method for water supply system, water supply system, and refrigeration apparatus
US-12540935-B2 · Feb 3, 2026 · US
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Si Zengqiang patents
Si Zengqiang is listed as an inventor on 27 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Si Zengqiang |
| Total patents | 27 |
| First publication | May 16, 2019 |
| Latest publication | Feb 3, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Water Supply System for a Refrigeration Device, and Refrigeration Device
US-2025075970-A1 · Mar 6, 2025 · US
Refrigerator and energy-saving control method and apparatus therefor
US-11852395-B2 · Dec 26, 2023 · US
Ice machine, fault handling method and fault handling apparatus for ice machine, and refrigeration device
US-11747080-B2 · Sep 5, 2023 · US
Ice making system and refrigeration apparatus
US-11656018-B2 · May 23, 2023 · US
Ice storage container and refrigerator having same
US-11480376-B2 · Oct 25, 2022 · US
Ice making system and refrigeration apparatus
US-2022325934-A1 · Oct 13, 2022 · US
Water quality monitoring method for water supply system, water supply system, and refrigeration apparatus
US-2022196626-A1 · Jun 23, 2022 · US
Refrigerator
US-11255590-B2 · Feb 22, 2022 · US
Ice discharger and refrigerator comprising the same
US-11193706-B2 · Dec 7, 2021 · US
Recent patents
Latest publications not already listed above.
Ice maker and refrigerator
US-11162728-B2 · Nov 2, 2021 · US
Refrigerator and energy-saving control method and apparatus therefor
US-2021164716-A1 · Jun 3, 2021 · US
Ice maker with three-branch pipe assembly
US-11015853-B2 · May 25, 2021 · US
Ice storage container and refrigerator having same
US-2021123651-A1 · Apr 29, 2021 · US
Ice machine, fault handling method and fault handling apparatus for ice machine, and refrigeration device
US-2021080170-A1 · Mar 18, 2021 · US
Refrigerator having an ice-making system with an ice-making chamber disposed inside a refrigerating compartment
US-10900704-B2 · Jan 26, 2021 · US
Ice maker-integrated refrigerator
US-2020393187-A1 · Dec 17, 2020 · US
Refrigerator
US-10859304-B2 · Dec 8, 2020 · US
Ice-maker/ice storage box assembly and refrigerator
US-10808980-B2 · Oct 20, 2020 · US
Refrigerator
US-2020248951-A1 · Aug 6, 2020 · US
Refrigerator
US-2020182529-A1 · Jun 11, 2020 · US
Refrigerator
US-2020166268-A1 · May 28, 2020 · US
Ice discharger and refrigerator comprising the same
US-2020049395-A1 · Feb 13, 2020 · US
Ice maker and refrigerator
US-2019390887-A1 · Dec 26, 2019 · US
Refrigerator
US-2019360737-A1 · Nov 28, 2019 · US
Ice maker
US-2019212047-A1 · Jul 11, 2019 · US
Ice-maker/ice storage box assembly and refrigerator
US-2019145687-A1 · May 16, 2019 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Hefei Midea Refrigerator Co | 26 |
| Hefei Hualing Co Ltd | 26 |
| Midea Group Co Ltd | 23 |
| Media Group Co Ltd | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| F25C5/22 | 15 |
| F25C1/24 | 12 |
| F25D23/12 | 11 |
| F25C2400/10 | 11 |
| F25C1/00 | 10 |