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Extract from the Register of European Patents

EP About this file: EP0495039

EP0495039 - SILICAS [Right-click to bookmark this link]
StatusPatent maintained as amended
Status updated on  22.08.2003
Database last updated on 05.07.2024
Most recent event   Tooltip30.10.2009Change - opposition data/opponents data or that of the opponents representativepublished on 02.12.2009  [2009/49]
Applicant(s)For all designated states
INEOS Silicas Limited
Bank Quay
Warrington WA5 1AB / GB
[2001/24]
Former [1995/23]For all designated states
CROSFIELD LIMITED
Bank Quay
Warrington, Cheshire, WA5 1AB / GB
Former [1992/30]For all designated states
JOSEPH CROSFIELD & SONS LTD.
Bank Quay
Warrington, Cheshire, WA5 1AB / GB
Inventor(s)01 / McKEOWN, Ian, Patrick
23 Arlesford Road Aigburth
Liverpool L19 3QZ / GB
02 / STANIER, Peter, William
3 Weaver Close Elworth
Sand Bach, Cheshire CW11 9EZ / GB
[1992/30]
Representative(s)Collingwood, Anthony Robert, et al
Marks & Clerk Sussex House 83-85 Mosley Street
Manchester, M2 3LG / GB
[N/P]
Former [2003/35]Collingwood, Anthony Robert, et al
LLoyd Wise, McNeight & Lawrence, Regent House Heaton Lane
Stockport, Cheshire SK4 1BS / GB
Former [2000/16]Jackson, John Derek, et al
Crosfield Limited
Warrington Cheshire WA5 1AB / GB
Former [1997/36]Collingwood, Anthony Robert, et al
ICI Group Intellectual Property P.O. Box 11 The Heath
Runcorn Cheshire WA7 4QE / GB
Former [1995/48]Hugot, Alain, et al
Unilever plc, Patent Division, Colworth House
Sharnbrook, Bedford MK44 1LQ / GB
Former [1992/30]Roscoe, Brian Corrie
UNILEVER PLC Patents Division Colworth House Sharnbrook
Bedford MK44 1LQ / GB
Application number, filing date91913688.705.08.1991
[1992/30]
WO1991GB01331
Priority number, dateEP1990030860806.08.1990         Original published format: EP 90308608
[1992/30]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9202454
Date:20.02.1992
Language:EN
[1992/05]
Type: A1 Application with search report 
No.:EP0495039
Date:22.07.1992
Language:EN
The application published by WIPO in one of the EPO official languages on 20.02.1992 takes the place of the publication of the European patent application.
[1992/30]
Type: B1 Patent specification 
No.:EP0495039
Date:15.10.1997
Language:EN
[1997/42]
Type: B2 New European patent specification 
No.:EP0495039
Date:08.10.2003
Language:EN
[2003/41]
Search report(s)International search report - published on:EP20.02.1992
ClassificationIPC:C01B33/193, A61K7/16
[1992/30]
CPC:
A61K8/25 (EP); A61Q11/00 (EP); C01B33/193 (EP);
A61K2800/412 (EP); C01P2002/02 (EP); C01P2004/61 (EP);
C01P2006/12 (EP); C01P2006/16 (EP); C01P2006/19 (EP);
C01P2006/22 (EP); C01P2006/60 (EP); C01P2006/90 (EP) (-)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IT,   LI,   NL,   SE [1992/30]
TitleGerman:KIESELSÄUREN[1992/30]
English:SILICAS[1992/30]
French:SILICES[1992/30]
Entry into regional phase27.03.1992National basic fee paid 
27.03.1992Designation fee(s) paid 
27.03.1992Examination fee paid 
Examination procedure27.03.1992Examination requested  [1992/30]
22.12.1993Despatch of a communication from the examining division (Time limit: M04)
15.04.1994Reply to a communication from the examining division
21.12.1994Despatch of a communication from the examining division (Time limit: M04)
07.04.1995Reply to a communication from the examining division
22.11.1996Despatch of communication of intention to grant (Approval: No)
03.04.1997Despatch of communication of intention to grant (Approval: later approval)
09.04.1997Communication of intention to grant the patent
13.05.1997Fee for grant paid
13.05.1997Fee for publishing/printing paid
Opposition(s)Opponent(s)01  18.06.1998  03.07.1998  ADMISSIBLE
Degussa AG
Benningsenplatz 1
40474 Düsseldorf / DE
Opponent's representative
Weber, Wolfgang
Evonik Degussa GmbH
DG-IPM-PAT
Postcode 84/339
Rodenbacher Chaussee 4
63457 Hanau / DE
 [N/P]
Former [2009/49]
Opponent(s)01  18.06.1998  03.07.1998  ADMISSIBLE
Degussa AG
Benningsenplatz 1
40474 Düsseldorf / DE
Opponent's representative
Weber, Wolfgang
Evonik Degussa GmbH DG-IPM-PAT Postcode 84/339 Rodenbacher Chaussee 4
63457 Hanau / DE
Former [2003/18]
Opponent(s)01  18.06.1998  03.07.1998  ADMISSIBLE
DEGUSSA AG
Benningsenplatz 1
40474 Düsseldorf / DE
Opponent's representative
Weber, Wolfgang, Dr
Degussa AG Intellectual Property Management Patente und Marken Standort Hanau Postfach 13 45
63403 Hanau / DE
Former [1998/33]
Opponent(s)01  18.06.1998  03.07.1998  ADMISSIBLE
DEGUSSA AG, Patentabteilung- Zweigniederlassung Wolfgang
Postfach 13 45
D-63403 Hanau / DE
Opponent's representative
Weber, Wolfgang
Evonik Degussa GmbH DG-IPM-PAT Postcode 84/339 Rodenbacher Chaussee 4
63457 Hanau / DE
21.08.1998Invitation to proprietor to file observations on the notice of opposition
19.02.1999Reply of patent proprietor to notice(s) of opposition
06.10.2000Date of oral proceedings
09.01.2001Despatch of interlocutory decision in opposition
09.01.2001Despatch of minutes of oral proceedings
20.02.2003Legal effect of interlocutory decision in opposition
26.03.2003Despatch of communication that the patent will be maintained as amended
24.06.2003Fee for printing new specification paid
Appeal following opposition09.03.2001Appeal received No.  T0299/01
25.04.2001Statement of grounds filed
20.02.2003Result of appeal procedure: appeal of the opponent was rejected
20.02.2003Date of oral proceedings
26.02.2003Minutes of the oral proceedings despatched
Fees paidRenewal fee
16.08.1993Renewal fee patent year 03
22.08.1994Renewal fee patent year 04
17.08.1995Renewal fee patent year 05
20.08.1996Renewal fee patent year 06
12.08.1997Renewal fee patent year 07
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  TooltipAT15.10.1997
BE15.10.1997
CH15.10.1997
DK15.10.1997
GR15.10.1997
LI15.10.1997
NL15.10.1997
SE15.01.1998
ES06.08.1998
[2004/28]
Former [2003/07]AT15.10.1997
BE15.10.1997
CH15.10.1997
DK15.10.1997
ES15.10.1997
GR15.10.1997
LI15.10.1997
NL15.10.1997
SE15.01.1998
Former [2002/25]AT15.10.1997
BE15.10.1997
CH15.10.1997
DK15.10.1997
ES15.10.1997
GR15.10.1997
LI15.10.1997
SE15.01.1998
Former [2000/05]AT15.10.1997
BE15.10.1997
CH15.10.1997
DK15.10.1997
GR15.10.1997
LI15.10.1997
SE15.01.1998
Former [1998/46]AT15.10.1997
BE15.10.1997
CH15.10.1997
DK15.10.1997
LI15.10.1997
SE15.01.1998
Former [1998/45]AT15.10.1997
CH15.10.1997
DK15.10.1997
LI15.10.1997
SE15.01.1998
Former [1998/30]AT15.10.1997
DK15.10.1997
SE15.01.1998
Former [1998/21]SE15.01.1998
Cited inInternational search[A]DE2446038  (SIFRANCE);
 [X]EP0308165  (UNILEVER PLC [GB], et al);
 [A]EP0315503  (RHONE POULENC CHIMIE [FR])
OppositionUS3864470
 EP0227334
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.