Method and apparatus for carbon dioxide sequestration
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United States of America Patent
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May 20, 2014
Issued Date -
N/A
app pub date -
Nov 10, 2010
filing date -
Nov 10, 2010
priority date (Note) -
In Force
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Abstract
A method and apparatus are disclosed for sequestering carbon dioxide. Carbon dioxide and a reductant are fed into a combustion chamber and burned. The reductant forms an oxide with oxygen from the carbon dioxide, generating an oxidized reductant and carbon which are exhausted from the combustion chamber and separated. The oxidize reductant is then itself reduced to form reclaimed reductant, which is used to provide the reductant for reducing the carbon dioxide. The oxidized reductant is reduced by disposing the oxidized reductant in an inert environment and exposing the oxidized reductant to electromagnetic radiation of a wavelength for freeing oxygen from the oxidized reductant. The electromagnetic radiation is preferably provided by light having a wavelength which is readily absorbed by oxygen, such as light emitted by a YAG laser. Preferably the reductant is provided by a metal, such as magnesium.
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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NORTHRUP INC | 1445 ROSS AVE STE 3700 DALLAS TX 75202 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Northrup, Robert P | Dallas, US | 7 | 61 |
# of filed Patents : 7 Total Citations : 61 | |||
Northrup,, Jr Lynn L | Dallas, US | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
Washburne, Dwight Hunter | Dallas, US | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 |
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- B01D Class
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- 11 Age
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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 | Nov 20, 2025 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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

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Mar 07, 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 |
Mar 07, 2022 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jan 30, 2022 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jan 30, 2022 |
Sep 20, 2021 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Jul 03, 2018 | CC | CERTIFICATE OF CORRECTION | |
Jan 30, 2018 | I | Issuance | |
Jan 10, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
May 14, 2015 | P | Published | |
Jan 20, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SUN, CHUANQING;ZHANG, XIA;LIU, FENGXIA;AND OTHERS;REEL/FRAME:032118/0324 Owner name: CHINA AGRICULTURAL UNIVERSITY, CHINA Effective Date: Jan 20, 2014 |
May 09, 2012 | F | Filing | |
May 10, 2011 | PD | Priority Date |

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