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Extract from the Register of European Patents

EP About this file: EP2574841

EP2574841 - Method for reducing nitrogen oxide emissions and corrosion in a bubbling fluidized bed boiler and a bubbling fluidized bed boiler [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  11.08.2017
Database last updated on 30.10.2024
FormerRequest for examination was made
Status updated on  27.04.2017
Most recent event   Tooltip11.08.2017Application deemed to be withdrawnpublished on 13.09.2017  [2017/37]
Applicant(s)For all designated states
Fortum OYJ
Keilaniementie 1
02150 Espoo / FI
[2013/14]
Inventor(s)01 / Dernjatin, Pauli
Fortum Oyj
Tulustie 8a D
00670 Helsinki / FI
02 / Jukola, Perttu
Säterinkuja 1 A 10
02600 Espoo / FI
03 / Huttunen, Marko
Visamäki 3 A 1
02130 Espoo / FI
 [2013/14]
Representative(s)Papula Oy
Mechelininkatu 1 a
00180 Helsinki / FI
[2013/14]
Application number, filing date12397524.526.09.2012
[2013/14]
Priority number, dateFI2011000596230.09.2011         Original published format: FI 20115962
[2013/14]
Filing languageFI
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP2574841
Date:03.04.2013
Language:EN
[2013/14]
Type: A3 Search report 
No.:EP2574841
Date:26.02.2014
Language:EN
[2014/09]
Search report(s)(Supplementary) European search report - dispatched on:EP23.01.2014
ClassificationIPC:F23C10/00, F23G5/30, F27B15/00, F27B15/02, F27B15/10
[2014/03]
CPC:
F23C10/00 (EP); F23C10/20 (FI); F23G5/14 (EP);
F23G5/30 (EP); F23L9/02 (EP); F27B15/00 (EP);
F27B15/02 (EP); F27B15/10 (EP); F23G2203/502 (EP);
F23G2207/30 (EP) (-)
Former IPC [2013/14]F23C10/00, F23G5/30, F27B15/00
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2013/14]
Extension statesBANot yet paid
MENot yet paid
TitleGerman:Verfahren zur Reduzierung von Stickstoffoxidemissionen und Korrosion in einem Kessel mit stationärer Wirbelschicht und Kessel mit stationärer Wirbelschicht[2013/14]
English:Method for reducing nitrogen oxide emissions and corrosion in a bubbling fluidized bed boiler and a bubbling fluidized bed boiler[2013/14]
French:Procédé pour réduire les émissions d'oxyde d'azote et la corrosion dans une chaudière à lit fluidisé bouillonnant et chaudière à lit fluidisé bouillonnant[2013/14]
Examination procedure18.08.2014Amendment by applicant (claims and/or description)
18.08.2014Examination requested  [2014/39]
01.04.2017Application deemed to be withdrawn, date of legal effect  [2017/37]
28.04.2017Despatch of communication that the application is deemed to be withdrawn, reason: renewal fee not paid in time  [2017/37]
Fees paidRenewal fee
30.09.2014Renewal fee patent year 03
06.08.2015Renewal fee patent year 04
Penalty fee
Additional fee for renewal fee
30.09.201605   M06   Not yet paid
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[AD]WO2006084954  (KVAERNER POWER OY [FI], et al) [AD] 1-15 * page 8, line 20 - page 14, line 2 * * figures 1, 2 *;
 [A]US4962711  (YAMAUCHI YASUHIRO [JP], et al) [A] 1-15 * column 5, paragraph 26 - column 15, paragraph 73 * * figures 1-4 *;
 [A]  - KNÖBIG, T. ET AL., "Comparison of large- and small-scale circulating fluidized bed combustors with respect to polluant formation and reduction for different fuels.", FUEL, (1998), vol. 77, no. 14, pages 1635 - 1642, XP002716919 [A] 1-15 * the whole document *

DOI:   http://dx.doi.org/10.1016/S0016-2361(98)00092-1
 [A]  - KOKSAL M., ET AL, "Effect of staged air on heat transfer in circulating fluidized beds.", APPLIED THERMAL ENGINEERING, (2008), vol. 28, pages 1008 - 1014, XP002716921 [A] 1-15 * the whole document *

DOI:   http://dx.doi.org/10.1016/J.APPLTHERMALENG.2007.06.028
 [A]  - SEN LI ET AL, "Optimization of air staging in a 1 MW tangentially fired pulverized coal furnace", FUEL PROCESSING TECHNOLOGY, (20080805), vol. 90, no. 1, doi:10.1016/j.fuproc.2008.08.005, ISSN 0378-3820, pages 99 - 106, XP055089604 [A] 1-15 * the whole document *

DOI:   http://dx.doi.org/10.1016/j.fuproc.2008.08.005
 [A]  - HAO Z ET AL, "Combining neural network and genetic algorithms to optimize low NOx pulverized coal combustion", FUEL, IPC SCIENCE AND TECHNOLOGY PRESS, GUILDFORD, GB, (20010618), vol. 80, no. 15, doi:10.1016/S0016-2361(01)00104-1, ISSN 0016-2361, pages 2163 - 2169, XP004321709 [A] 1-15 * the whole document *

DOI:   http://dx.doi.org/10.1016/S0016-2361(01)00104-1
by applicantWO2006084954
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