Direct drive refrigerant screw compressor with refrigerant lubricated rotors
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Feb 13, 2024
Grant Date -
N/A
app pub date -
May 19, 2020
filing date -
May 19, 2020
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
Disclosed is a direct-drive refrigerant screw compressor, having: a housing; a compression chamber in the housing; a pair of rotors, each rotor of the pair of rotors being rotationally disposed in the compression chamber and including an outer surface with a screw-geared profile; a fluid being disposed in the compression chamber, the fluid consisting of a working fluid for providing lubrication to each rotor; a first port extending through the housing and configured for directing the fluid toward the compression chamber; and when the compressor is activated, each rotor rotates and the fluid is distributed about each rotor to lubricate each rotor.
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 | |
---|---|---|
CARRIER CORPORATION | 13995 PASTEUR BLVD PALM BEACH GARDENS FL 33418 |
International Classification(s)

- 2020 Application Filing Year
- F04C Class
- 426 Applications Filed
- 308 Patents Issued To-Date
- 72.31 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Chaudhry, Zaffir A | South Glastonbury, US | 99 | 918 |
# of filed Patents : 99 Total Citations : 918 | |||
Jonsson, Ulf J | South Windsor, US | 44 | 320 |
# of filed Patents : 44 Total Citations : 320 | |||
Qiu, Yifan | Manlius, US | 7 | 5 |
# of filed Patents : 7 Total Citations : 5 | |||
Rockwell, David M | Cicero, US | 24 | 221 |
# of filed Patents : 24 Total Citations : 221 | |||
Vaidya, Amit | Jamesville, US | 11 | 3 |
# of filed Patents : 11 Total Citations : 3 |
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Patent Citation Ranking
- 0 Citation Count
- F04C Class
- 0 % this patent is cited more than
- 1 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Aug 13, 2027 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 13, 2031 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 13, 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 |
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Jan 07, 2025 | P | Publication | |
Dec 18, 2024 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Aug 07, 2024 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED |
May 13, 2024 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS |
Apr 22, 2024 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |
Jan 18, 2024 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: NON FINAL ACTION MAILED |
Mar 09, 2023 | P | Published | |
Oct 16, 2021 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
Oct 14, 2021 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ABOTABL, AHMED ATTIA;ABDELGHAFFAR, MUHAMMAD SAYED KHAIRY;MUKKAVILLI, KRISHNA KIRAN;SIGNING DATES FROM 20210912 TO 20211011;REEL/FRAME:057794/0981 Owner name: QUALCOMM INCORPORATED, CALIFORNIA |
Sep 03, 2021 | F | Filing | |
Sep 03, 2021 | 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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