Process for nitrogen oxides reduction and minimization of the production of other pollutants
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 21, 1991
Issued Date -
N/A
app pub date -
May 23, 1989
filing date -
Feb 13, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for the reduction of nitrogen oxides in an effluent from the combustion of a carbonaceous fuel while minimizing the production of other pollutants is presented. The process comprises introducing (most commonly by injecting) a nitrogen oxides reducing treatment agent into an effluent according to a nitrogen oxides reducing treatment regimen under conditions such that the treatment agent is operating on the high temperature or right side of its nitrogen oxides reduction versus effluent temperature curve, especially on the high temperature or right side of the curve plateau.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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FUEL TECH INC A CORP OF MA | 61 TAYLOR REED PLACE STAMFORD CT 06906 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Epperly, William R | New Canaan, CT | 18 | 338 |
# of filed Patents : 18 Total Citations : 338 | |||
O'Leary, John H | Danbury, CT | 5 | 123 |
# of filed Patents : 5 Total Citations : 123 | |||
Sprague, Barry N | Bethlehem, CT | 34 | 848 |
# of filed Patents : 34 Total Citations : 848 | |||
Sullivan, James C | Norwalk, CT | 20 | 363 |
# of filed Patents : 20 Total Citations : 363 |
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Patent Citation Ranking
- 25 Citation Count
- C01B Class
- 0 % this patent is cited more than
- 34 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
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Feb 06, 2017 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Aug 06, 2013 | I | Issuance | |
Jul 17, 2013 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Feb 02, 2012 | P | Published | |
Jul 28, 2010 | F | Filing | |
Jul 28, 2010 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BRYAN, DAVID J.;REEL/FRAME:024972/0887 Owner name: ATI PROPERTIES, INC., OREGON Effective Date: Jul 28, 2010 |

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