Motor, compressor and refrigeration device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 30, 2024
Grant Date -
Sep 15, 2022
app pub date -
May 26, 2022
filing date -
Mar 15, 2021
priority date (Note) -
In Force
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
A motor, a compressor and a refrigeration device are provided. The motor includes a stator and a rotor. The stator has a central hole and multiple stator slots arranged in an annular array centered on an axis of the central hole. The rotor is provided in the central hole. Multiple rotor slots are provided on the rotor, and are arranged in an annular array centered on the axis of the central hole and close to an edge of the rotor. A plane perpendicular to the axis of the central hole is a reference plane, a sum of projected areas of the stator slots on the reference plane is S1, a sum of projected areas of the rotor slots on the reference plane is S2, an outer periphery of the stator projected on the reference plane forms a projected pattern, and an area of the projected pattern is S3.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
ANHUI MEIZHI PRECISION MANUFACTURING CO LTD | 241000 NO 3 TAISHAN ROAD WUHU ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE WUHU CITY ANHUI PROVINCE WUHU CITY ANHUI PROVINCE 241000 |
International Classification(s)

- 2022 Application Filing Year
- H02K Class
- 2937 Applications Filed
- 1114 Patents Issued To-Date
- 37.93 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Qiu, Xiaohua | Anhui, CN | 30 | 152 |
# of filed Patents : 30 Total Citations : 152 | |||
Sun, Zhengjun | Anhui, CN | 4 | 0 |
# of filed Patents : 4 Total Citations : 0 | |||
Zhao, Dongliang | Anhui, CN | 12 | 34 |
# of filed Patents : 12 Total Citations : 34 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- H02K Class
- 0 % this patent is cited more than
- 1 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Oct 30, 2027 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 30, 2031 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 30, 2035 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Feb 25, 2025 | P | Publication | |
Feb 05, 2025 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
May 29, 2024 | F | Filing | |
May 29, 2024 | FEPP | FEE PAYMENT PROCEDURE | free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |

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