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Extract from the Register of European Patents

EP About this file: EP0670957

EP0670957 - NATURAL GAS EXPANSION PLANT [Right-click to bookmark this link]
StatusPatent maintained as amended
Status updated on  16.02.2001
Database last updated on 20.12.2024
Most recent event   Tooltip31.07.2009Change - opposition data/opponents data or that of the opponents representativepublished on 02.09.2009  [2009/36]
Applicant(s)For all designated states
ENERGIEVERSORGUNG LEVERKUSEN GMBH
Overfeldweg 23
D-51371 Leverkusen / DE
For all designated states
PILLER-GmbH
Abgunst 24
37520 Osterode am Harz / DE
[2001/14]
Former [1995/37]For all designated states
ENERGIEVERSORGUNG LEVERKUSEN GMBH
Overfeldweg 23
D-51371 Leverkusen / DE
For all designated states
PILLER-GmbH
Abgunst 24
D-37520 Osterode am Harz / DE
Inventor(s)01 / KÜCK, Elmar
Gartenstrasse 13
D-50181 Bedburg / DE
02 / SIEFEN, Heinz
Jakob-Kaiser-Strasse 2
D-51375 Leverkusen / DE
03 / CANDERS, Wolf-Ruediger
Fuchshaller Weg 38
D-37520 Osterode / DE
[1995/37]
Representative(s)dompatent von Kreisler Selting Werner - Partnerschaft von Patent- und Rechtsanwälten mbB
Deichmannhaus am Dom
Bahnhofsvorplatz 1
50667 Köln / DE
[N/P]
Former [1995/37]Selting, Günther, et al
Patentanwälte von Kreisler-Selting-Werner, Bahnhofsvorplatz 1 (Deichmannhaus)
D-50667 Köln / DE
Application number, filing date94901812.117.11.1993
[1995/37]
WO1993EP03223
Priority number, dateDE19920015695U18.11.1992         Original published format: DE 9215695 U
[1995/37]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report
No.:WO9411626
Date:26.05.1994
Language:DE
[1994/12]
Type: A1 Application with search report 
No.:EP0670957
Date:13.09.1995
Language:DE
The application published by WIPO in one of the EPO official languages on 26.05.1994 takes the place of the publication of the European patent application.
[1995/37]
Type: B1 Patent specification 
No.:EP0670957
Date:24.07.1996
Language:DE
[1996/30]
Type: B2 New European patent specification 
No.:EP0670957
Date:04.04.2001
Language:DE
[2001/14]
Search report(s)International search report - published on:EP26.05.1994
ClassificationIPC:F02C1/00, F17D1/075
[1995/37]
CPC:
F02C1/00 (EP,US); F02C1/04 (EP,US); F17D1/075 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   FR,   GB,   GR,   IE,   IT,   LI,   NL,   PT,   SE [1995/37]
TitleGerman:ERDGAS-EXPANSIONSANLAGE[1995/37]
English:NATURAL GAS EXPANSION PLANT[1995/37]
French:SYSTEME DE DETENTE DE GAZ NATUREL[1995/37]
Entry into regional phase28.04.1995National basic fee paid 
28.04.1995Designation fee(s) paid 
28.04.1995Examination fee paid 
Examination procedure09.06.1994Request for preliminary examination filed
International Preliminary Examining Authority: EP
28.04.1995Examination requested  [1995/37]
20.09.1995Despatch of communication of intention to grant (Approval: Yes)
29.01.1996Communication of intention to grant the patent
17.04.1996Fee for grant paid
17.04.1996Fee for publishing/printing paid
Opposition(s)Opponent(s)01  23.04.1997  07.05.1997  ADMISSIBLE
EWE Aktiengesellschaft
Tirpitzstrasse 39
26122 Oldenburg / DE
Opponent's representative
Jabbusch, Wolfgang
Jabbusch Siekmann & Wasiljeff
Hauptstrasse 85
26131 Oldenburg / DE
 [N/P]
Former [2009/36]
Opponent(s)01  23.04.1997  07.05.1997  ADMISSIBLE
EWE Aktiengesellschaft
Tirpitzstrasse 39
26122 Oldenburg / DE
Opponent's representative
Jabbusch, Wolfgang
Jabbusch Arendt & Siekmann Koppelstrasse 3
26135 Oldenburg / DE
Former [1997/25]
Opponent(s)01  23.04.1997   
EWE Aktiengesellschaft
Tirpitzstrasse 39
26122 Oldenburg / DE
Opponent's representative
Jabbusch, Wolfgang
Jabbusch, Wehser & Lauerwald Patentanwälte Koppelstrasse 3
26135 Oldenburg / DE
28.05.1997Invitation to proprietor to file observations on the notice of opposition
25.09.1997Reply of patent proprietor to notice(s) of opposition
08.10.1997Communication of observations of patent proprietor (Time limit: M04)
09.02.1998Reply of parties involved to observations of patent proprietor
03.08.1998Despatch of communication that the patent will be revoked
01.08.2000Despatch of interlocutory decision in opposition
01.08.2000Legal effect of interlocutory decision in opposition
30.10.2000Despatch of communication that the patent will be maintained as amended
23.01.2001Fee for printing new specification paid
Appeal following opposition25.08.1998Appeal received No.  T0878/98
03.12.1998Statement of grounds filed
01.08.2000Result of appeal procedure: maintenance in amended form
01.08.2000Date of oral proceedings
07.08.2000Minutes of the oral proceedings despatched
Fees paidRenewal fee
28.11.1995Renewal fee patent year 03
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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.
Cited inInternational search[A]DE2515315  (BORSIG GMBH);
 [XY]EP0004398  (ACEC [BE]) [X] 1 * the whole document * [Y] 5;
 [YA]US4555637  (IRVINE MICHAEL D [US]) [Y] 5 * column W * [A] 1;
 [A]US4693072  (MCLEAN GEORGE S [US], et al) [A] 1-6 * column W *;
 [XY]EP0453007  (ADVIESBUREAU AMERCONSULT B V [NL]) [X] 1,2 * the whole document * [Y] 5
 [XY]  - G.GNEUSS, "Nutzung von Druckenergie durch Gasexpansionsmotoren", BWK BRENNSTOFF WARME KRAFT, DUSSELDORF DE, (19831001), vol. 35, no. 10, pages 428 - 432 [X] 1 * page 429 - page 430; figure 6 * [Y] 5
 [A]  - A.MIRANDOLA AND L.MINCA, Energy recovery by expansion of high pressure natural gas, SAN DIEGO, AMERICAN CHEMICAL SOCIETY [A] 1-6 * 21st Intersociety Energy Conversion Engineering Conference; page 16 - page 21; figure 2 *
 [Y]  - "Suspending Rotating Shafts in Midair", COMPRESSED AIR, PHILLIPSBURG US, (19850401), vol. 90, no. 4, pages 30 - 33 [Y] 5 * page 30 - page 33 *
 [A]  - "Magnetic Auxilliary Bearing for SULZER Gas Bearing Turbines", CRYOGENICS, GUILDFORD GB, (19770701), vol. 17, no. 7 [A] 5
Opposition   - Broschüre der Arbeitsgemeinschaft für sparsamen und umweltfreundlichen Energieverbrauch e.V., "Stichwort Entspannung Strom aus Gasdruck", April 1991
    - Praxis Kraft-Wärme-Kopplung, Band 3, Jobst Klien, "Planungshilfe Blockheizkraftwerke", Verlag C.F. Müller, 1. Auflage 1991, Seiten 14 und 16
    - Schriftreihe gwf Gas. Erdgas, Band 6, "Wirtschaftliche Nutzung des Druckgefälles bei der Entspannung von Erdgas", R.Oldenburg Verlag München Wien 1991, Herausgeber: Rolf Hüning
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.