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Extract from the Register of European Patents

EP About this file: EP0785224

EP0785224 - Process for preparing hydrophilic hydrogels with high swelling capacity [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  13.02.2004
Database last updated on 03.10.2024
Most recent event   Tooltip27.06.2008Change - applicantpublished on 30.07.2008  [2008/31]
Applicant(s)For all designated states
BASF Aktiengesellschaft
Carl-Bosch-Strasse 38
67063 Ludwigshafen / DE
[2008/31]
Former [2003/15]For all designated states
BASF AKTIENGESELLSCHAFT
67056 Ludwigshafen / DE
Former [1999/34]For all designated states
BASF AKTIENGESELLSCHAFT
67056 Ludwigshafen / DE
Former [1997/49]For all designated states
Clariant GmbH
Brüningstrasse 50
65929 Frankfurt am Main / DE
Former [1997/30]For all designated states
HOECHST AKTIENGESELLSCHAFT
Brüningstrasse 50
65929 Frankfurt am Main / DE
Inventor(s)01 / Engelhardt, Fritz, Dr.
131 Harbour Watch Drive
Chesapeake, Virginia 23320 / US
02 / Daniel, Thomas, Dr.
4161 Prindle Ct. No. 204
Chesapeake, VA 23321 / US
03 / Herfert, Norbert, Dr.
Auf dem Hansenberg 10
63674 Altenstadt / DE
04 / Remmel, Gustav
Leipzigerstrasse 24
63571 Gelnhausen / DE
05 / Riegel, Ulrich
Steinäckerstrasse 6
60386 Frankfurt am Main / DE
06 / Stüven, Uwe, Dr.-Ing.
Im Hopfengarten 35
65812 Bad Soden / DE
[1997/30]
Application number, filing date97100322.310.01.1997
[1997/30]
Priority number, dateDE199610176419.01.1996         Original published format: DE 19601764
[1997/30]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0785224
Date:23.07.1997
Language:DE
[1997/30]
Type: A3 Search report 
No.:EP0785224
Date:01.04.1998
[1998/14]
Type: B1 Patent specification 
No.:EP0785224
Date:09.04.2003
Language:DE
[2003/15]
Search report(s)(Supplementary) European search report - dispatched on:EP18.02.1998
ClassificationIPC:C08J3/075, C08L101/14, C08J11/06
[1998/15]
CPC:
C08J3/075 (EP)
Former IPC [1997/30]C08J3/075
Designated contracting statesBE,   DE,   ES,   FR,   GB,   GR,   IT,   NL,   SE [1997/30]
TitleGerman:Verfahren zur Herstellung hydrophiler, hochquellfähiger Hydrogele[1997/30]
English:Process for preparing hydrophilic hydrogels with high swelling capacity[1997/30]
French:Procédé pour la préparation d'hydrogels hydrophyliques à haute capacité de gonflage[1997/30]
Examination procedure01.10.1998Examination requested  [1998/49]
01.08.2002Communication of intention to grant the patent
23.01.2003Fee for grant paid
23.01.2003Fee for publishing/printing paid
Opposition(s)12.01.2004No opposition filed within time limit [2004/14]
Fees paidRenewal fee
08.12.1998Renewal fee patent year 03
26.01.2000Renewal fee patent year 04
17.01.2001Renewal fee patent year 05
23.01.2002Renewal fee patent year 06
21.01.2003Renewal 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  TooltipIT09.04.2003
NL09.04.2003
GR09.07.2003
SE09.07.2003
ES30.10.2003
[2008/07]
Former [2004/04]NL09.04.2003
GR09.07.2003
SE09.07.2003
ES30.10.2003
Former [2004/02]NL09.04.2003
GR09.07.2003
SE09.07.2003
Former [2004/01]NL09.04.2003
SE09.07.2003
Former [2003/41]SE09.07.2003
Documents cited:Search[DA]EP0463388  (HOECHST CELANESE CORP [US]) [DA] 1 * claim 1 *;
 [A]EP0063331  (KIMBERLY CLARK CO [US]) [A] 1 * claim 1 * * page 6, line 3 - line 7 *;
 [A]US4950692  (LEWIS WILLIAM H [US], et al) [A] 1 * claim 1 * * column 5, line 56 - line 59 *
by applicantDE3741157
 WO9201008
 EP0513780
 EP0463388
 US4057521
 US4062817
 US4525527
 US4286082
 US4340706
 US4295987
 US5011892
 US4076663
 US4931497
 US4041496
 EP0343427
 DE1301566
    - W.C. GRIFFIN, J. SOC. COSMETIC CHEM., (1954), vol. 5, page 249
    - MAKROMOL. CHEM., (1947), vol. 1, page 169
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.