Recovery system of waste heat from flue gas
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Oct 25, 2016
Grant Date -
Apr 23, 2015
app pub date -
Dec 21, 2014
filing date -
Jul 6, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A recovery system of waste heat from flue gas. The system includes a first heat exchanger and a second exchanger. The first heat exchanger includes a heat absorption section, a heat release section, and a first pipeline. The second heat exchanger includes a second pipeline including an inlet header and an outlet header. The system further includes a third pipeline. The first heat exchanger is disposed at a relatively high temperature side of a flue, the second heat exchanger is disposed at a relatively low temperature side of the flue, and the first heat exchanger and the second heat exchanger are connected by the third pipeline. The heat absorption section and the heat release section are connected by the first pipeline to form a circulation loop; the heat absorption section is disposed in the flue; the heat release section is disposed in the third pipeline.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SHANGHAI FUBO EP EQUIPMENT CO LTD | SHANGHAI 201204 |
International Classification(s)
- F24H:FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING H....
- F28D:HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTH....
- F28F:DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATU....
- F22B:METHODS OF STEAM GENERATION; STEAM BOILERS
- F24D:DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL H....
- F22D:PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER;....

- 2014 Application Filing Year
- F24H Class
- 299 Applications Filed
- 234 Patents Issued To-Date
- 78.27 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Liu, Bing | Shanghai, CN | 414 | 3981 |
# of filed Patents : 414 Total Citations : 3981 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 1 Citation Count
- F24H Class
- 19.47 % this patent is cited more than
- 9 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 25, 2028 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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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Oct 03, 2022 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Oct 03, 2022 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Aug 26, 2022 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Aug 26, 2022 |
Apr 18, 2022 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Feb 21, 2018 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551) year of fee payment: 4 |
Aug 26, 2014 | I | Issuance | |
Aug 06, 2014 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Apr 21, 2011 | P | Published | |
Dec 31, 2010 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HULSEMAN, RALPH A.;CANNON, ANDREW H.;KING, WILLIAM P.;AND OTHERS;SIGNING DATES FROM 20101017 TO 20101230;REEL/FRAME:025569/0741 Owner name: HOOWAKI, LLC, SOUTH CAROLINA |
Aug 26, 2010 | F | Filing | |
May 08, 2009 | PD | Priority Date |

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