Thermal energy conversion device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Aug 25, 2015
Issued Date -
N/A
app pub date -
Dec 4, 2009
filing date -
Sep 17, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Embodiments provide a power generation device that utilizes a working fluid containing carbon dioxide within a working fluid circuit having high and low pressure sides. Components of the device may include a heat exchanger configured to be in thermal communication with a heat source whereby thermal energy is transferred from the heat source to the working fluid, an expander located between the high and low pressure sides of the working fluid circuit and operative to convert a pressure drop in the working fluid to mechanical energy, a recuperator operative to transfer thermal energy between the high and low pressure sides, a cooler operative to control temperature of the working fluid in the low pressure side, a pump operative to circulate the working fluid through the working fluid circuit, and a mass management system configured to control an amount of working fluid mass in the working fluid circuit.
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 | |
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ECHOGEN POWER SYSTEMS | 405 SOUTH HIGH STREET AKRON OH 44311 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Held, Timothy J | Akron, US | 16 | 575 |
# of filed Patents : 16 Total Citations : 575 | |||
Hostler, Stephen | Akron, US | 6 | 419 |
# of filed Patents : 6 Total Citations : 419 | |||
Hume, Brian F | Westerville, US | 4 | 199 |
# of filed Patents : 4 Total Citations : 199 | |||
Miller, Jason D | Hudson, US | 36 | 1271 |
# of filed Patents : 36 Total Citations : 1271 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 25, 2027 |
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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Sep 25, 2023 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Sep 25, 2023 | 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 18, 2023 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Aug 18, 2023 |
Apr 10, 2023 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Jan 31, 2019 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 4 |
Aug 18, 2015 | I | Issuance | |
Aug 06, 2015 | P | Published | |
Jul 29, 2015 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Feb 02, 2015 | F | Filing | |
Jan 30, 2015 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SHIN, HYUN TAEK;REEL/FRAME:034869/0230 Owner name: SAMJIN STEEL IND. CO., LTD., KOREA, REPUBLIC OF Effective Date: Jan 30, 2015 |
Feb 04, 2014 | PD | Priority Date |

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