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Extract from the Register of European Patents

EP About this file: EP1088580

EP1088580 - Process of drying filtercakes in filter chambers of a filter press and filter press for carrying out said process [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  22.06.2007
Database last updated on 25.09.2024
Most recent event   Tooltip22.06.2007Revocation of patentpublished on 25.07.2007  [2007/30]
Applicant(s)For all designated states
Lenser Filtration GmbH & Co.
Breslauer Strasse 8
89250 Senden / DE
[2001/14]
Inventor(s)01 / Buhl, Rolf F.
Longericher Hauptstrasse 45 a
50739 Köln / DE
02 / Weiler, Manfred
Beethovenstrasse 2
89250 Senden / DE
03 / Zhu, Qian Dr.
Fenggu Road 205/20/202
Shanghai / CN
04 / Zick, Mathias
Haselnussweg 23
89250 Senden / DE
05 / Heckl, Franz
Sonnenstrasse 8
89250 Senden / DE
 [2001/14]
Representative(s)Dziewior, Joachim, et al
Patentanwälte
Dr. Hermann Fay
Dr. Joachim Dziewior
Postfach 1767
89007 Ulm / DE
[N/P]
Former [2001/14]Dziewior, Joachim, Dipl.-Phys. Dr., et al
Patentanwälte Dr. Hermann Fay Dr. Joachim Dziewior Postfach 1767
89007 Ulm / DE
Application number, filing date99119606.402.10.1999
[2001/14]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP1088580
Date:04.04.2001
Language:DE
[2001/14]
Type: B1 Patent specification 
No.:EP1088580
Date:17.12.2003
Language:DE
[2003/51]
Search report(s)(Supplementary) European search report - dispatched on:EP22.03.2000
ClassificationIPC:B01D25/21, B01D25/28, B01D35/18
[2001/14]
CPC:
B01D35/18 (EP); B01D25/215 (EP); B01D25/284 (EP);
B01D25/285 (EP)
Designated contracting statesAT,   BE,   CH,   CY,   DE,   DK,   ES,   FI,   FR,   GB,   GR,   IE,   IT,   LI,   LU,   MC,   NL,   PT,   SE [2001/14]
TitleGerman:Verfahren zur Trocknung von in Filterkammern einer Filterpresse aufgebauten Filterkuchen sowie Filterpresse zur Durchführung des Verfahrens[2001/14]
English:Process of drying filtercakes in filter chambers of a filter press and filter press for carrying out said process[2001/14]
French:Procédé pour le séchage de gâteaux de filtration dans des chambres de filtration de filtre-presse et filtre-presse pour la mise en oeuvre de ce procédé[2001/14]
Examination procedure16.06.2001Examination requested  [2001/34]
03.07.2003Communication of intention to grant the patent
08.10.2003Fee for grant paid
08.10.2003Fee for publishing/printing paid
Opposition(s)Opponent(s)01  08.09.2004    ADMISSIBLE
NETZSCH-Filtrationstechnik GmbH
Gebrüder Netzsch Strasse 19
95100 Selb / DE
 02  09.09.2004    ADMISSIBLE
dehydry Anlagenbau AG
Mühlhauserstrasse 96
4056 Basel / CH
Opponent's representative
Wagner, Kilian
Westphal - Mussgnug & Partner
Patentanwälte
Am Riettor 5
78048 Villingen-Schwenningen / DE
 [N/P]
Former [2004/46]
Opponent(s)01  08.09.2004    ADMISSIBLE
NETZSCH-Filtrationstechnik GmbH
Gebrüder Netzsch Strasse 19
95100 Selb / DE
 02  09.09.2004    ADMISSIBLE
dehydry Anlagenbau AG
Mühlhauserstrasse 96
4056 Basel / CH
Opponent's representative
Wagner, Kilian
Westphal - Mussgnug & Partner, Patentanwälte, Am Riettor 5
78048 Villingen-Schwenningen / DE
29.11.2004Invitation to proprietor to file observations on the notice of opposition
25.05.2005Reply of patent proprietor to notice(s) of opposition
13.09.2005Despatch of a communication from the opposition division (Time limit: M06)
24.03.2006Reply to a communication from the opposition division
27.06.2006Despatch of a communication from the opposition division (Time limit: M07)
07.02.2007Reply to a communication from the opposition division
02.03.2007Despatch of communication that the patent will be revoked
12.03.2007Legal effect of revocation of patent [2007/30]
Fees paidRenewal fee
10.10.2001Renewal fee patent year 03
12.10.2002Renewal fee patent year 04
13.10.2003Renewal fee patent year 05
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Lapses during opposition  TooltipCY17.12.2003
GR17.03.2004
LU02.10.2004
MC31.10.2004
[2007/18]
Former [2005/45]GR17.03.2004
MC31.10.2004
Former [2004/33]GR17.03.2004
Documents cited:Search[Y]GB2258621  (EDWARDS & JONES [GB]) [Y] 1,3,4,7,8 * page 4, paragraph 4 - page 5, paragraph 2 *;
 [A]DE4224648  (ESCHER WYSS GMBH [DE]) [A] 1,8 * column 2, line 55 - column 4, line 19; figures 1A-1C *;
 [A]DE4136906  (LENSER KUNSTSTOFF PRESS [DE]) [A] 6* the whole document *;
 [Y]  - RUF J ET AL, "DAMPFDRUCKENTWAESSERUNG IN EIENER HEISSEN FILTERPRESSE. VAPOUR PRESSURE DEWATERING IN A HOT FILTER PRESS", AUFBEREITUNGS TECHNIK,DE,VERLAG FUER AUFBEREITUNG SCHIRMER UND ZEH. WIESBADEN, (19970801), vol. 38, no. 8, ISSN 1443-9302, pages 411 - 416, XP000697437 [Y] 1,3,4,7,8 * 3. Technische Umsetzung, 4. Entfeuchtungsergebnisse *
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.