Deutsch English Français

Contact

EP0755299

European procedure

Quick help

Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...

News flashes

Italy joins the Federated Register

Click here for more information on the Federated Register.

2025-06-12

More...

Extract from the Register of European Patents

EP About this file: EP0755299

EP0755299 - A METHOD OF PURIFYING GASES CONTAINING NITROGEN OXIDES AND AN APPARATUS FOR PURIFYING GASES IN A STEAM GENERATION BOILER [Right-click to bookmark this link]
Status	Patent revoked Status updated on 22.03.2002 Database last updated on 11.04.2026
Most recent event Tooltip	04.01.2008	Lapse of the patent in a contracting state New state(s): IT	published on 06.02.2008 [2008/06]
Applicant(s)	For all designated states Foster Wheeler Energia Oy Sentnerikuja 2 00440 Helsinki / FI
	[1997/05]
Inventor(s)	01 / HILTUNEN, Matti Virsumäentie 91 FIN-48600 Karhula / FI
	02 / LEE, Yam 11212 Corte Playa Azteca San Diego, CA 92124 / US
	03 / VIEL LAMARE, Charles Masurgränd 4 S-183 40 Täby / SE
	[1997/05]
Representative(s)	(deleted)
	[2002/16]
Former [1997/05]	Blomquist, Tuula Maria Ingeborg Turun Patenttitoimisto Oy, P.O. Box 99 20521 Turku / FI
Application number, filing date	95915897.3	12.04.1995
	[1997/05]
	WO1995FI00207
Priority number, date	US19940226483	12.04.1994 Original published format: US 226483
	[1997/05]
Filing language	EN
Procedural language	EN
Publication	Type:	A1 Application with search report
	No.:	WO9527554
	Date:	19.10.1995
	Language:	EN
	[1995/45]
	Type:	A1 Application with search report
	No.:	EP0755299
	Date:	29.01.1997
	Language:	EN
	The application published by WIPO in one of the EPO official languages on 19.10.1995 takes the place of the publication of the European patent application.
	[1997/05]
	Type:	B1 Patent specification
	No.:	EP0755299
	Date:	01.09.1999
	Language:	EN
	[1999/35]
Search report(s)	International search report - published on:	SE	19.10.1995
Classification	IPC:	B01D53/56, F23J15/02, // F23C11/02	[1997/05]
	CPC:	F23C10/10 (EP,US); B01D53/56 (EP,KR,US); B01D53/8625 (EP,US); F23J15/02 (EP,US); F23J2215/10 (EP,US); F23J2219/10 (EP,US); (+) F23J2219/20 (EP,US) (-)
Designated contracting states	AT, BE, CH, DE, DK, ES, FR, GB, IE, IT, LI, NL, PT, SE [1997/05]
Title	German:	METHODE ZUR REINIGUNG VON STICKSTOFFOXID ENTHALTENDEN GASEN UND VORRICHTUNG ZUR REINIGUNG VON GASEN IN EINEM KESSEL ZUR ERZEUGUNG VON DAMPF	[1997/05]
	English:	A METHOD OF PURIFYING GASES CONTAINING NITROGEN OXIDES AND AN APPARATUS FOR PURIFYING GASES IN A STEAM GENERATION BOILER	[1997/05]
	French:	PROCEDE D'EPURATION DES GAZ RENFERMANT DES OXYDES D'AZOTE ET APPAREIL D'EPURATION DES GAZ D'UNE CHAUDIERE DE PRODUCTION DE VAPEUR	[1997/05]
Entry into regional phase	07.10.1996	National basic fee paid
	07.10.1996	Designation fee(s) paid
	07.10.1996	Examination fee paid
Examination procedure	11.10.1995	Request for preliminary examination filed International Preliminary Examining Authority: EP
	07.10.1996	Examination requested [1997/05]
	23.10.1997	Despatch of a communication from the examining division (Time limit: M02)
	22.12.1997	Reply to a communication from the examining division
	22.10.1998	Despatch of communication of intention to grant (Approval: No)
	17.02.1999	Despatch of communication of intention to grant (Approval: later approval)
	03.03.1999	Communication of intention to grant the patent
	18.05.1999	Fee for grant paid
	18.05.1999	Fee for publishing/printing paid
Opposition(s)	Opponent(s)	01 31.05.2000 03.07.2000 ADMISSIBLE ALSTOM Power Boiler GmbH Augsburger Strasse 712 70329 Stuttgart / DE
		02 31.05.2000 03.07.2000 ADMISSIBLE Kvaerner Pulping Oy Kelloportinkatu 1D 33100-TAMPERE / FI Opponent's representative Kaukonen, Juha Veikko Kolster Oy Ab Iso Roobertinkatu 23 P.O. Box 148 00121 Helsinki / FI
		[N/P]
	Former [2001/28]
	Opponent(s)	01 31.05.2000 03.07.2000 ADMISSIBLE ALSTOM Power Boiler GmbH Augsburger Strasse 712 70329 Stuttgart / DE
		02 31.05.2000 03.07.2000 ADMISSIBLE Kvaerner Pulping Oy Kelloportinkatu 1D 33100-TAMPERE / FI Opponent's representative Kaukonen, Juha Veikko Kolster Oy Ab, Iso Roobertinkatu 23, P.O. Box 148 00121 Helsinki / FI
	Former [2000/31]
	Opponent(s)	01 31.05.2000 ABB ALSTOM POWER Combustion GmbH Augsburger Str. 712 70329 Stuttgart / DE
		02 31.05.2000 ADMISSIBLE Kvaerner Pulping Oy Kelloportinkatu 1D 33100-TAMPERE / FI Opponent's representative Kaukonen, Juha Veikko Kolster Oy Ab, Iso Roobertinkatu 23, P.O. Box 148 00121 Helsinki / FI
	14.07.2000	Invitation to proprietor to file observations on the notice of opposition
	13.01.2001	Reply of patent proprietor to notice(s) of opposition
	21.11.2001	Date of oral proceedings
	21.11.2001	Legal effect of revocation of patent [2002/19]
	04.12.2001	Despatch of minutes of oral proceedings
	04.12.2001	Despatch of communication that the patent will be revoked
Fees paid	Renewal fee
	07.10.1996	Renewal fee patent year 03
	06.03.1998	Renewal fee patent year 04
	10.03.1999	Renewal fee patent year 05
Opt-out from the exclusive Tooltip competence of the Unified Patent Court	See the Register of the Unified Patent Court for opt-out data
	Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition Tooltip	CH	01.09.1999
	IT	01.09.1999
	LI	01.09.1999
	ES	02.12.1999
	PT	02.12.1999
	IE	12.04.2000
	[2008/06]
Former [2004/38]	CH	01.09.1999
	LI	01.09.1999
	ES	02.12.1999
	PT	02.12.1999
	IE	12.04.2000
Former [2001/50]	CH	01.09.1999
	LI	01.09.1999
	PT	02.12.1999
	IE	12.04.2000
Former [2000/52]	CH	01.09.1999
	LI	01.09.1999
	PT	02.12.1999
Former [2000/50]	PT	02.12.1999
	CH	06.12.1999
	LI	06.12.1999
Former [2000/26]	PT	02.12.1999
Cited in	International search	[X] WO9107219 (ABB CARBON AB et al.) [X]
		[X] EP0583771 (WAHLCO ENVIRONMENTAL SYSTEMS I et al.) [X]
		[A] WO9101793 (ABB CARBON AB et al.) [A]
		[A] WO9116575 (AHLSTROEM OY et al.) [A]

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.