blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability
Register Forum

2022.02.11

More...
blank News flashes

News flashes

New version of the European Patent Register - SPC information for Unitary Patents.

2024-03-06

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP0538904

EP0538904 - Carboxyalkyl polysaccharides and process for their preparation [Right-click to bookmark this link]
StatusPatent maintained as amended
Status updated on  24.08.2001
Database last updated on 24.04.2024
Most recent event   Tooltip24.08.2001Patent maintained (B2 publication)published on 10.10.2001 [2001/41]
Applicant(s)For all designated states
KIMBERLY-CLARK WORLDWIDE, INC.
401 North Lake Street
Neenah, WI 54956 / US
[N/P]
Former [1997/51]For all designated states
KIMBERLY-CLARK WORLDWIDE, INC.
401 North Lake Street
Neenah, Wisconsin 54956 / US
Former [1997/49]For all designated states
Kimberly-Clark Worldwide, Inc.
401 North Lake Street
Neenah, WI 54956 / US
Former [1993/17]For all designated states
KIMBERLY-CLARK CORPORATION
401 North Lake Street
Neenah, Wisconsin 54956-0349 / US
Inventor(s)01 / Ning, Xin
2641 West Eighth Street
Appleton, Wisconsin 54914 / US
02 / Sun, Tong
1747 Golf Bridge Drive, Apt. 8
Neenah, Wisconsin 54956 / US
[1993/17]
Representative(s)Diehl, Hermann O. Th., et al
Diehl & Partner GbR
Postfach 34 01 15
80098 München / DE
[N/P]
Former [1993/17]Diehl, Hermann O. Th., Dr., et al
Diehl, Glaeser, Hiltl & Partner Patentanwälte Postfach 19 03 65
D-80603 München / DE
Application number, filing date92118266.326.10.1992
[1993/17]
Priority number, dateUS1991078285325.10.1991         Original published format: US 782853
US1991080808611.12.1991         Original published format: US 808086
[1993/17]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0538904
Date:28.04.1993
Language:EN
[1993/17]
Type: A3 Search report 
No.:EP0538904
Date:13.10.1993
Language:EN
[1993/41]
Type: B1 Patent specification 
No.:EP0538904
Date:17.12.1997
Language:EN
[1997/51]
Type: B2 New European patent specification 
No.:EP0538904
Date:10.10.2001
Language:EN
[2001/41]
Search report(s)(Supplementary) European search report - dispatched on:EP24.08.1993
ClassificationIPC:C08B37/00, C08B11/20, C08B15/10, // A61L15/00
[1993/17]
CPC:
A61L15/60 (EP); C08B11/12 (EP); C08B11/20 (EP);
C08B15/005 (EP)
C-Set:
A61L15/60, C08L1/28 (EP)
Designated contracting statesBE,   DE,   ES,   FR,   GB,   IT,   NL,   SE [1993/17]
TitleGerman:Carboxyalkylpolysaccharide und Verfahren zu ihrer Herstellung[1993/17]
English:Carboxyalkyl polysaccharides and process for their preparation[1993/17]
French:Carboxyalkylpolysaccharides et procédé pour les préparer[1993/17]
Examination procedure31.03.1994Examination requested  [1994/22]
29.12.1995Despatch of a communication from the examining division (Time limit: M07)
24.07.1996Reply to a communication from the examining division
15.01.1997Despatch of communication of intention to grant (Approval: No)
02.05.1997Despatch of communication of intention to grant (Approval: later approval)
12.05.1997Communication of intention to grant the patent
12.08.1997Fee for grant paid
12.08.1997Fee for publishing/printing paid
Opposition(s)Opponent(s)01  17.09.1998  07.10.1998  ADMISSIBLE
SCA Research AB
40503 Göteborg / SE
Opponent's representative
Egeröd, Lisbeth, et al, et al
Valea AB
Box 1098
405 23 Gothenburg / SE
 02  17.09.1998  07.10.1998  ADMISSIBLE
Hercules Incorporated
Hercules Plaza, 1313 North Market Street
Wilmington, Delaware 19894-0001 / US
Opponent's representative
Kindler, Matthias, et al, et al
Hoffmann - Eitle
ATTENTION : ADDRESS INACTIVE - USE ASS-NR - CDR / DE
 [N/P]
Former [1998/46]
Opponent(s)01  17.09.1998   
SCA Research AB
40503 Göteborg / SE
Opponent's representative
Egeröd, Lisbeth, et al, et al
Valea AB Lindholmspiren 5
417 56 Gothenburg / SE
 02  17.09.1998   
Hercules Incorporated
Hercules Plaza, 1313 North Market Street
Wilmington, Delaware 19894-0001 / US
Opponent's representative
Kindler, Matthias, et al, et al
Hoffmann Eitle, Patent- und Rechtsanwälte, Postfach 81 04 20
81904 München / DE
29.10.1998Invitation to proprietor to file observations on the notice of opposition
08.07.1999Reply of patent proprietor to notice(s) of opposition
11.12.2000Legal effect of interlocutory decision in opposition
11.12.2000Date of oral proceedings
17.01.2001Despatch of interlocutory decision in opposition
17.01.2001Despatch of minutes of oral proceedings
04.05.2001Despatch of communication that the patent will be maintained as amended
02.08.2001Fee for printing new specification paid
Fees paidRenewal fee
12.10.1994Renewal fee patent year 03
09.10.1995Renewal fee patent year 04
14.10.1996Renewal fee patent year 05
13.10.1997Renewal fee patent year 06
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.
Documents cited:Search[X]GB1086323  ;
 [Y]FR2510628  ;
 [Y]US3858585  ;
 [A]US4200736  ;
 [AD]US3723413
OppositionUS3731686
 EP0201895
 EP0566118
 GB1397154
 WO9010495
 US4090013
 DD212969
    - Ullmann's Encyclopedia of Industrial Chemistry, VCH Verlagsgesellschaft mbH, Weinheim, Germany, 1986, p. 477-479
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.