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Extract from the Register of European Patents

EP About this file: EP0715635

EP0715635 - WATER-SOLUBLE COPOLYMERIZATES CONTAINING CARBOXYL GROUPS, METHODS OF PRODUCING SAID COPOLYMERIZATES, AND USE THEREOF AS SCALE INHIBITORS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  12.02.1999
Database last updated on 05.10.2024
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 [1998/15]For all designated states
BASF AKTIENGESELLSCHAFT
67056 Ludwigshafen / DE
Former [1996/24]For all designated states
BASF AKTIENGESELLSCHAFT
D-67056 Ludwigshafen / DE
Inventor(s)01 / DENZINGER, Walter
Wormser Landstrasse 65
D-67346 Speyer / DE
02 / HARTMANN, Heinrich
Weinheimer Strasse 46
D-67117 Limburgerhof / DE
03 / POTTHOFF-KARL, Birgit
Gruenerstrasse 7
D-67061 Ludwigshafen / DE
04 / BUECHNER, Karl-Heinz
Kirchfeldring 14a
D-68804 Altlu heim / DE
05 / HEIDER, Marc
Dr.-Semmelweis-Strasse 6
D-67433 Neustadt / DE
06 / RAUBENHEIMER, Hans-Juergen
Benzstrasse 6
D-68775 Ketsch / DE
[1996/24]
Application number, filing date94924878.516.08.1994
[1996/24]
WO1994EP02721
Priority number, dateDE1993432881727.08.1993         Original published format: DE 4328817
[1996/24]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report
No.:WO9506074
Date:02.03.1995
Language:DE
[1995/10]
Type: A1 Application with search report 
No.:EP0715635
Date:12.06.1996
Language:DE
The application published by WIPO in one of the EPO official languages on 02.03.1995 takes the place of the publication of the European patent application.
[1996/24]
Type: B1 Patent specification 
No.:EP0715635
Date:08.04.1998
Language:DE
[1998/15]
Search report(s)International search report - published on:EP02.03.1995
ClassificationIPC:C08F220/04, C02F5/10
[1996/24]
CPC:
C02F5/10 (EP,US); C02F1/042 (EP,US); C08F220/04 (EP,US);
C08F222/06 (EP,US); C09K8/528 (EP,US); Y02A20/124 (EP,US)
Designated contracting statesBE,   CH,   DE,   ES,   FR,   GB,   IT,   LI,   NL [1996/24]
TitleGerman:WASSERLÖSLICHE, CARBOXYLGRUPPEN ENTHALTENDE COPOLYMERISATE, VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG ALS SCALEINHIBITOR[1996/24]
English:WATER-SOLUBLE COPOLYMERIZATES CONTAINING CARBOXYL GROUPS, METHODS OF PRODUCING SAID COPOLYMERIZATES, AND USE THEREOF AS SCALE INHIBITORS[1996/24]
French:COPOLYMERISATS SOLUBLES DANS L'EAU CONTENANT LES GROUPES CARBOXYLE, LEUR PROCEDE DE PREPARATION ET LEUR UTILISATION COMME AGENTS ANTI-TARTRE[1996/24]
Entry into regional phase25.01.1996National basic fee paid 
25.01.1996Designation fee(s) paid 
25.01.1996Examination fee paid 
Examination procedure09.02.1995Request for preliminary examination filed
International Preliminary Examining Authority: EP
25.01.1996Examination requested  [1996/24]
27.01.1997Despatch of a communication from the examining division (Time limit: M04)
07.04.1997Reply to a communication from the examining division
25.06.1997Despatch of communication of intention to grant (Approval: Yes)
29.08.1997Communication of intention to grant the patent
28.10.1997Fee for grant paid
28.10.1997Fee for publishing/printing paid
Opposition(s)09.01.1999No opposition filed within time limit [1999/13]
Fees paidRenewal fee
21.08.1996Renewal fee patent year 03
20.08.1997Renewal fee patent year 04
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  TooltipES08.04.1998
IT08.04.1998
BE31.08.1998
CH31.08.1998
LI31.08.1998
[2002/26]
Former [2000/52]IT08.04.1998
BE31.08.1998
CH31.08.1998
LI31.08.1998
Former [1999/42]IT08.04.1998
BE31.08.1998
Former [1999/32]BE31.08.1998
Cited inInternational search[X]EP0315167  (NIPPON OILS & FATS CO LTD [JP]) [X] 1,2 * page 4, line 1 - page 5, line 4; examples 7,12,14 *;
 [X]EP0216479  (ALLIED COLLOIDS LTD [GB]) [X] 1,2 * page 9, line 1 - page 10, line 24 * * claim -; table - *;
 [X]JPS64109  ;
 [A]EP0123108  (KAO CORP [JP]) [A] 1-3 * abstract *;
 [A]US4151341  (EVANI SYAMALARAO [US], et al) [A] 1-3 * column A; example -; claim - *
 [X]  - DATABASE WPI, 1, Derwent World Patents Index, vol. 89, no. 07, Database accession no. 89-050519, & JPS64109 A 00000000 (NIPPON OIL) [X] 1,2 * 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.