Extract from the Register of European Patents

EP About this file: EP0873978

EP0873978 - Poly (Vinyl Alcohol) stabilized acrylic polymer modified hydraulic cement systems [Right-click to bookmark this link]
StatusPatent maintained as amended
Status updated on  08.06.2012
Database last updated on 11.04.2026
Most recent event   Tooltip08.06.2012Patent maintained (B2 publication)published on 11.07.2012  [2012/28]
Applicant(s)For all designated states
Wacker Chemie AG
Hanns-Seidel-Platz 4
81737 München / DE
[2010/14]
Former [2005/24]For all designated states
Wacker Polymer Systems GmbH & Co. KG
Johannes-Hess-Strasse 24
84489 Burghausen / DE
Former [1998/44]For all designated states
AIR PRODUCTS AND CHEMICALS, INC.
7201 Hamilton Boulevard
Allentown, PA 18195-1501 / US
Inventor(s)01 / Hornaman, E. Chris
2225 Riverbend Road
Allentown, PA 18103 / US
02 / Hable, Christopher Thomas
7975 Cross Creek Circle
Breinigsville, PA 18031 / US
03 / Bright, Randall Paul
1100 Pat Court
Allentown, PA 18103 / US
04 / Bott, Richard Henry
1610 Cherry Lane
Macungie, PA 18062 / US
[1998/44]
Representative(s)Schuderer, Michael
Wacker Chemie AG
Zentralbereich Patente, Marken und Lizenzen
Hanns-Seidel-Platz 4
81737 München / DE
[N/P]
Former [2012/28]Schuderer, Michael
Wacker Chemie AG Zentralbereich Patente, Marken und Lizenzen Hanns-Seidel-Platz 4
81737 München / DE
Former [2005/33]Schuderer, Michael, Dr.
Wacker-Chemie GmbH Zentralabteilung Patente Marken und Lizenzen Hanns-Seidel-Platz 4
81737 München / DE
Former [2005/30](deleted)
Former [1998/44]Kador & Partner
Corneliusstrasse 15
80469 München / DE
Application number, filing date98106978.416.04.1998
[1998/44]
Priority number, dateUS1997084096521.04.1997         Original published format: US 840965
[1998/44]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0873978
Date:28.10.1998
Language:EN
[1998/44]
Type: B1 Patent specification 
No.:EP0873978
Date:03.07.2002
Language:EN
[2002/27]
Type: B2 New European patent specification 
No.:EP0873978
Date:11.07.2012
Language:EN
[2012/28]
Search report(s)(Supplementary) European search report - dispatched on:EP27.07.1998
ClassificationIPC:C04B28/02, C04B24/26, C08F20/12
[1998/44]
CPC:
C04B24/2641 (EP,US); C08F2/30 (EP,US); C08F20/12 (EP,US);
C04B2103/0057 (EP,US)
C-Set:
C04B24/2641, C04B24/2623 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT [1999/27]
Former [1998/44]AT,  BE,  CH,  CY,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE 
TitleGerman:Mit durch Polyvinylalkohol stabilisierte Acrylpolymere modifizierte hydraulische Zementsysteme[1998/44]
English:Poly (Vinyl Alcohol) stabilized acrylic polymer modified hydraulic cement systems[1998/44]
French:Systèmes de ciment hydraulique modifiés par un polymère acrylique stabilisé par de l'alcool polyvinylique[1998/44]
Examination procedure23.12.1998Examination requested  [1999/09]
29.04.1999Loss of particular rights, legal effect: designated state(s)
21.09.1999Despatch of communication of loss of particular rights: designated state(s) AT, BE, CH, CY, DK, ES, FI, GR, IE, LU, MC, NL, PT, SE
21.01.2000Despatch of a communication from the examining division (Time limit: M06)
24.07.2000Reply to a communication from the examining division
27.02.2001Despatch of a communication from the examining division (Time limit: M04)
07.06.2001Reply to a communication from the examining division
12.07.2001Despatch of communication of intention to grant (Approval: Yes)
15.11.2001Communication of intention to grant the patent
05.02.2002Fee for grant paid
05.02.2002Fee for publishing/printing paid
Opposition(s)Opponent(s)01  27.03.2003    ADMISSIBLE
Celanese Emulsions GmbH
Frankfurterstr. 111
61476 Kronberg / DE
Opponent's representative
Ackermann, Joachim
Patentanwaltskanzlei Dr. Ackermann
Postfach 11 13 26
60048 Frankfurt am Main / DE
 [N/P]
Former [2003/21]
Opponent(s)01  27.03.2003    ADMISSIBLE
Celanese Emulsions GmbH
Frankfurterstr. 111
61476 Kronberg / DE
Opponent's representative
Ackermann, Joachim, Dr.
Postfach 11 13 26
60048 Frankfurt am Main / DE
08.05.2003Invitation to proprietor to file observations on the notice of opposition
15.09.2003Reply of patent proprietor to notice(s) of opposition
29.09.2003Communication of observations of patent proprietor (Time limit: M06)
08.04.2004Reply of parties involved to observations of patent proprietor
22.02.2005Date of oral proceedings
29.03.2005Despatch of minutes of oral proceedings
12.01.2010Despatch of a communication from the opposition division (Time limit: M04)
10.03.2010Reply to a communication from the opposition division
29.03.2010Despatch of a communication from the opposition division (Time limit: M02)
28.07.2010Despatch of interlocutory decision in opposition
07.08.2010Legal effect of interlocutory decision in opposition
26.03.2012Despatch of communication that the patent will be maintained as amended
23.05.2012Fee for printing new specification paid
Appeal following opposition11.05.2005Appeal received No.  T0593/05
04.06.2005Statement of grounds filed
15.05.2007Result of appeal procedure: maintenance in amended form
15.05.2007Date of oral proceedings
24.05.2007Minutes of the oral proceedings despatched
Fees paidRenewal fee
07.04.2000Renewal fee patent year 03
09.04.2001Renewal fee patent year 04
08.04.2002Renewal fee patent year 05
Penalty fee
Penalty fee Rule 85a EPC 1973
27.05.1999AT   M01   Not yet paid
27.05.1999BE   M01   Not yet paid
27.05.1999CH   M01   Not yet paid
27.05.1999CY   M01   Not yet paid
27.05.1999DK   M01   Not yet paid
27.05.1999ES   M01   Not yet paid
27.05.1999FI   M01   Not yet paid
27.05.1999GR   M01   Not yet paid
27.05.1999IE   M01   Not yet paid
27.05.1999LU   M01   Not yet paid
27.05.1999MC   M01   Not yet paid
27.05.1999NL   M01   Not yet paid
27.05.1999PT   M01   Not yet paid
27.05.1999SE   M01   Not yet paid
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Documents cited:Search[DA] EP0601518  (AIR PROD & CHEM et al.)
 [DA] EP0723975  (ELOTEX AG et al.)
 [A] EP0450437  (BASF AG et al.)
 [A] EP0680993  (AIR PROD & CHEM et al.)
 [PA] EP0812863  (AIR PROD & CHEM et al.)
OppositionEP0718314
 EP0538571
 EP0062106
 EP0812863
 EP0723975
 GB1278813
 US4670505
 US4265796
   DR. E. NGELE: "Bautenschutz und Bausanierung", ZEITSCHRIFT FR BAUINSTNDHALTUNG UND DENKMALPFLEGE 9.JAHRGANG, 1986, pages 121 - 129
   G. ODIAN: "Principles of Polymerisation", 1991, JOHN WILLEY & SONS,INC, pages: 23 - 24
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