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Extract from the Register of European Patents

EP About this file: EP0848986

EP0848986 - Method of reducing nitrogen oxides in exhaust gases of internal combustion engines [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  23.05.2003
Database last updated on 26.04.2025
Most recent event   Tooltip23.05.2003No opposition filed within time limitpublished on 09.07.2003  [2003/28]
Applicant(s)For all designated states
OMG AG & Co. KG
Rodenbacher Chaussee 4
63457 Hanau / DE
[2001/46]
Former [2001/15]For all designated states
dmc2 Degussa Metals Catalysts Cerdec AG
60287 Frankfurt am Main / DE
Former [1999/36]For all designated states
Degussa-Hüls Aktiengesellschaft
60287 Frankfurt am Main / DE
Former [1999/26]For all designated states
Degussa-Hüls Aktiengesellschaft
45764 Marl / DE
Former [1998/26]For all designated states
DEGUSSA AG
Weissfrauenstrasse 9
60311 Frankfurt / DE
Inventor(s)01 / van den Tillaart, Johan A.A., Dr.
Schillerstrasse 30
63579 Freigericht / DE
02 / Leyrer, Jürgen, Dr.
Vogteistrasse 41a
79618 Rheinfelden / DE
03 / Lox, Egbert, Dr.
Greifenhagenstrasse 12b
63457 Hanau / DE
04 / Kreuzer, Thomas, Dr.
Philipp-Reis Strasse 13
61184 Karben / DE
05 / Eckhoff, Stephan
Zum Pageskampe 24
31515 Wunsdorf / DE
[1998/26]
Representative(s)Stellbrink, Axel, et al
Vossius & Partner
Siebertstrasse 4
81675 München / DE
[N/P]
Former [2002/22]Stellbrink, Axel, et al
Vossius & Partner Siebertstrasse 4
81675 München / DE
Former [2001/46]Herrmann, Reinhard
OMG AG FI-PAT Postfach 1351
63403 Hanau / DE
Application number, filing date97120915.028.11.1997
[1998/26]
Priority number, dateDE199615395821.12.1996         Original published format: DE 19653958
[1998/26]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0848986
Date:24.06.1998
Language:DE
[1998/26]
Type: B1 Patent specification 
No.:EP0848986
Date:17.07.2002
Language:DE
[2002/29]
Search report(s)(Supplementary) European search report - dispatched on:EP01.04.1998
ClassificationIPC:B01D53/94
[1998/26]
CPC:
B01D53/9409 (EP,KR,US); B01D53/9495 (EP,KR,US); F01N3/20 (KR);
F01N2610/03 (EP,KR,US)
Designated contracting statesDE,   ES,   FR,   GB,   IT,   NL,   SE [1999/10]
Former [1998/26]AT,  BE,  CH,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE 
TitleGerman:Verfahren zur Verminderung der Stickoxide im Abgas von Verbrennungsmotoren[1998/26]
English:Method of reducing nitrogen oxides in exhaust gases of internal combustion engines[1998/26]
French:Méthode pour réduire des oxydes d'azotes dans le gaz d'échappement des moteurs à combustion interne[1998/26]
Examination procedure28.11.1997Examination requested  [1998/26]
28.09.1999Despatch of a communication from the examining division (Time limit: M06)
31.03.2000Reply to a communication from the examining division
19.12.2001Despatch of communication of intention to grant (Approval: Yes)
21.01.2002Communication of intention to grant the patent
29.04.2002Fee for grant paid
29.04.2002Fee for publishing/printing paid
Opposition(s)22.04.2003No opposition filed within time limit [2003/28]
Fees paidRenewal fee
12.10.1999Renewal fee patent year 03
13.10.2000Renewal fee patent year 04
18.10.2001Renewal fee patent year 05
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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[X]DE4215942  (HITACHI LTD [JP]) [X] 1-4 * column 1, line 28 - column 1, line 44 * * column 3, line 34 - column 3, line 57 * * column 7, line 9 - column 7, line 31 * * column 7, line 63 - column 8, line 9 * * figures 1,19,22 *;
 [A]DE2046180  (FORD-WERKE) [A] 1-4 * figure 1 *;
 [A]US5517848  (HOSOYA YASUHIKO [JP], et al) [A] 1-4 * figure 1 *;
 [A]EP0559021  (DEGUSSA [DE]) [A] 1-4 * claims 1-10 *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.