FUEL TECH, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
B01D SEPARATION 18116
 
 
 
F23J REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 710
 
 
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 6103
 
 
 
C01C AMMONIA; CYANOGEN; COMPOUNDS THEREOF 59
 
 
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF475
 
 
 
F23B METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL 47
 
 
 
A61H PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY 135
 
 
 
A61L METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES 170
 
 
 
B01B BOILING; BOILING APPARATUS13
 
 
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2014/0314,651 Process and Apparatus for Improving the Operation of Wet ScrubbersFeb 26, 14Oct 23, 14[B01D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9802154 Process for sulfur dioxide, hydrochloric acid and mercury mediationDec 22, 14Oct 31, 17[B01J, B01D]
9718025 Reducing hydrochloric acid in cement kilnsSep 30, 15Aug 01, 17[C04B, F23J, B01D]
9656207 reduction apparatus providing improved gasification of ureaNov 10, 15May 23, 17[B01D, B01F]
9399597 Ash compositions recovered from coal combustion gases having reduced emissions of HCI and/or mercuryAug 26, 14Jul 26, 16[C04B, B01J, B01D]
9393518 Processes, apparatus, compositions and systems for reducing emissions of HCI and/or sulfur oxidesFeb 26, 14Jul 19, 16[B01D]
9289721 Process and apparatus for improving the operation of wet scrubbersFeb 26, 14Mar 22, 16[F23J, B01D]
8992868 Dry processes, apparatus compositions and systems for reducing mercury, sulfur oxides and HClApr 30, 13Mar 31, 15[G05B, F23J, B01D]
8951492 Ammonia gas generation from urea for low temperature process requirementsApr 25, 12Feb 10, 15[C01C]
8940543 Diagnostic tool and process for assessing thermal urea gasification performanceMay 03, 12Jan 27, 15[F23N, F23J, C01C]
8916120 Dry processes, apparatus, compositions and systems for reducing sulfur oxides and HCIApr 01, 13Dec 23, 14[B01J, B01D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0203,498 Methods, Apparatus and Systems for Improving the Operation of Cyclone BoilersAbandonedFeb 23, 11Aug 25, 11[F23J, F23D]
2011/0002,830 SELECTIVE CATALYTIC REDUCTION OF NOx ENABLED BY SIDESTREAM UREA DECOMPOSITIONAbandonedJul 02, 10Jan 06, 11[B01J, B01D]
2010/0006,014 TARGETED REAGENT INJECTION FOR SLAG CONTROL FROM COMBUSTION OF COALS HIGH IN IRON AND/OR CALCIUMAbandonedJul 13, 09Jan 14, 10[F23J]
7273595 Method and apparatus for the production of gaseous ammonia from a urea solutionExpiredDec 30, 04Sep 25, 07[B01D]
2007/0044,693 Process for improving operation of large-scale combustorsAbandonedJun 30, 06Mar 01, 07[F23J, F23B]
2006/0290,935 PROCESS FOR CORROSION CONTROL IN BOILERSAbandonedMay 16, 06Dec 28, 06[G01N]
6988454 Method and apparatus for adding reducing agent to secondary overfire air streamExpiredSep 08, 04Jan 24, 06[F23B]
2002/0199,156 Hardware-adaptable data visualization tool for use in complex data analysis and engineering designAbandonedDec 21, 01Dec 26, 02[G06F]
5240688 Process for the in-line hydrolysis of ureaExpiredAug 01, 90Aug 31, 93[C01B]
5139754 Catalytic/non-catalytic combination process for nitrogen oxides reductionExpiredDec 12, 90Aug 18, 92[B01J, C01B]
5069720 Method and composition for the reduction of ammonia emissions from non-acidic residueExpiredJun 17, 88Dec 03, 91[C04B]
5057293 Multi-stage process for reducing the concentration of pollutants in an effluentExpiredMay 23, 89Oct 15, 91[C01B, C01C]
5047219 Hybrid process for nitrogen oxides reductionExpiredAug 18, 89Sep 10, 91[C01B]
5017347 Process for nitrogen oxides reduction and minimization of the production of other pollutantsExpiredMay 23, 89May 21, 91[B01J, C01B]
4997631 Process for reducing nitrogen oxides without generating nitrous oxideExpiredMar 07, 90Mar 05, 91[C01B]
4992249 Reduction of nitrogen- and carbon-based pollutants through the use of urea solutionsExpiredAug 27, 87Feb 12, 91[C01B]
4985218 Process and injector for reducing the concentration of pollutants in an effluentExpiredMar 03, 89Jan 15, 91[B01D]
4978514 Combined catalytic/non-catalytic process for nitrogen oxides reductionExpiredSep 12, 89Dec 18, 90[B01J, C01B]
4976607 Burner apparatus for providing adjustable flame geometryExpiredJul 09, 86Dec 11, 90[F23C]
4927612 Reduction of nitrogen- and carbon-based pollutantsExpiredJun 02, 88May 22, 90[C01B]

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