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Extract from the Register of European Patents

EP About this file: EP0798335

EP0798335 - Process for producing porous, hydrophilic, highly swellable hydrogels [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  13.06.2003
Database last updated on 18.11.2024
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 [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 [1997/40]For all designated states
HOECHST AKTIENGESELLSCHAFT
Brüningstrasse 50
65929 Frankfurt am Main / DE
Inventor(s)01 / Funk, Rüdiger, Dr.
Heinrich-Heine-Strasse 15
65527 Niedernhausen / DE
02 / Herfert, Norbert, Dr.
Auf dem Hansenberg 10
63674 Altenstadt / DE
03 / Riegel, Ulrich
Steinäckerstrasse 6
60386 Frankfurt am Main / DE
[1997/40]
Application number, filing date97104831.921.03.1997
[1997/40]
Priority number, dateDE199611262829.03.1996         Original published format: DE 19612628
[1997/40]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0798335
Date:01.10.1997
Language:DE
[1997/40]
Type: A3 Search report 
No.:EP0798335
Date:27.05.1998
[1998/22]
Search report(s)(Supplementary) European search report - dispatched on:EP14.04.1998
ClassificationIPC:C08J9/28, // C08L101:14
[1997/40]
CPC:
C08J9/28 (EP,US); C08J2300/00 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IT,   LI,   NL,   SE [1997/40]
TitleGerman:Verfahren zur Herstellung von porösen hydrophilen, hochquellfähigen Hydrogelen[1997/40]
English:Process for producing porous, hydrophilic, highly swellable hydrogels[1997/40]
French:Procédé de préparation d'hydrogels poreux hydrophils et à forte capacité de gonflement[1997/40]
Examination procedure27.11.1998Examination requested  [1999/04]
28.02.2003Despatch of a communication from the examining division (Time limit: M04)
03.06.2003Application withdrawn by applicant  [2003/31]
Fees paidRenewal fee
06.02.1999Renewal fee patent year 03
18.03.2000Renewal fee patent year 04
16.03.2001Renewal fee patent year 05
09.03.2002Renewal fee patent year 06
25.03.2003Renewal fee patent year 07
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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.
Documents cited:Search[X]JPS62135504  ;
 [X]US4624868  (MULLER ERNEST G [US]) [X] 1,6 * example 2 * * claim - *;
 [X]US4898908  (LAHALIH SHAWQUI [KW], et al) [X] 1,6 * claim - *
 [X]  - DATABASE WPI, 1, Derwent World Patents Index, vol. 87, no. 30, Database accession no. 87-209326, XP002060864 & JPS62135504 A 19870618 (MITSUI TOATSU CHEM INC) [X] 1,6-8 * abstract *
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.