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Extract from the Register of European Patents

EP About this file: EP0628022

EP0628022 - PROCESS FOR THE PREPARATION OF POLYISOBUTYL HYDROXYAROMATICS [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  18.03.2005
Database last updated on 23.11.2024
Most recent event   Tooltip28.12.2007Lapse of the patent in a contracting state
Updated state(s): LU		published on 30.01.2008  [2008/05]
Applicant(s)For all designated states
Chevron Chemical Company LLC
2613 Camino Ramon
San Ramon, CA 94583-4289 / US
[2000/35]
Former [1998/19]For all designated states
Chevron Chemical Company LLC
575 Market Street
San Francisco, CA 94105 / US
Former [1996/43]For all designated states
CHEVRON CHEMICAL COMPANY
555 Market Street
San Francisco, California 94105 / US
Former [1996/30]For all designated states
CHEVRON CHEMICAL COMPANY
555 Market Street
San Francisco, California 94105 / US
Former [1995/39]For all designated states
CHEVRON RESEARCH AND TECHNOLOGY COMPANY
a division of CHEVRON U.S.A. INC., Post Office Box 7141
San Francisco, CA 94120-7141 / US
Former [1994/50]For all designated states
CHEVRON RESEARCH AND TECHNOLOGY COMPANY
P.O. Box 7141, 525 Market Street
San Francisco, CA 94120-7141 / US
Inventor(s)01 / CHERPECK, Richard, E.
8962 Cypress Avenue
Cotati, CA 94931 / US
[1994/50]
Representative(s)Nash, David Allan, et al
Haseltine Lake LLP
Redcliff Quay
120 Redcliff Street
Bristol BS1 6HU / GB
[N/P]
Former [1996/30]Nash, David Allan, et al
Haseltine Lake & Co. Hazlitt House 28 Southampton Buildings Chancery Lane
London WC2A 1AT / GB
Former [1994/50]Nash, David Allan
Haseltine Lake & Co. Hazlitt House 28 Southampton Buildings Chancery Lane
London WC2A 1AT / GB
Application number, filing date94905459.720.12.1993
[1994/50]
WO1993US12426
Priority number, dateUS1992099798228.12.1992         Original published format: US 997982
[1994/50]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9414739
Date:07.07.1994
Language:EN
[1994/15]
Type: A1 Application with search report 
No.:EP0628022
Date:14.12.1994
Language:EN
The application published by WIPO in one of the EPO official languages on 07.07.1994 takes the place of the publication of the European patent application.
[1994/50]
Type: B1 Patent specification 
No.:EP0628022
Date:11.03.1998
Language:EN
[1998/11]
Search report(s)International search report - published on:US07.07.1994
(Supplementary) European search report - dispatched on:EP12.12.1994
ClassificationIPC:C07C37/14, C07C39/06, C08F8/02
[1995/03]
CPC:
C07C37/14 (EP,US); C07C37/16 (KR); C08F8/00 (EP,US)
C-Set:
C07C37/14, C07C39/06 (US,EP);
C08F8/00, C08F10/10 (EP,US)
Former IPC [1994/50]C07C37/00, C07C37/16, C08G67/02
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IE,   IT,   LI,   LU,   MC,   NL,   PT,   SE [1994/50]
TitleGerman:VERFAHREN FÜR DIE HERSTELLUNG VON POLYISOBUTYL-HYDROXYAROMATEN[1994/50]
English:PROCESS FOR THE PREPARATION OF POLYISOBUTYL HYDROXYAROMATICS[1994/50]
French:PROCEDE DE PREPARATION D'HYDROXYAROMATIQUES POLYISOBUTYLIQUES[1994/50]
Entry into regional phase22.09.1994National basic fee paid 
22.09.1994Search fee paid 
22.09.1994Designation fee(s) paid 
22.09.1994Examination fee paid 
Examination procedure22.09.1994Examination requested  [1994/50]
21.05.1996Despatch of a communication from the examining division (Time limit: M06)
27.11.1996Reply to a communication from the examining division
13.02.1997Despatch of communication of intention to grant (Approval: No)
26.05.1997Despatch of communication of intention to grant (Approval: later approval)
07.07.1997Communication of intention to grant the patent
30.09.1997Fee for grant paid
30.09.1997Fee for publishing/printing paid
14.04.2000Observations by third parties
Opposition(s)Opponent(s)01  09.12.1998   
Ethyl Corporation
330 South Fourth Street
Richmond, Virginia 23219 / US
Opponent's representative
Sandmair, Kurt
Patentanwälte
Schwabe, Sandmair, Marx
Stuntzstrasse 16
81677 München / DE
 02  11.12.1998    ADMISSIBLE
The Lubrizol Corporation
29400 Lakeland Boulevard
Wickliffe, Ohio 44092 / US
Opponent's representative
Tauchner, Paul
Vossius & Partner
Postfach 86 07 67
81634 München / DE
 [N/P]
Former [1999/06]
Opponent(s)01  09.12.1998   
Ethyl Corporation
330 South Fourth Street
Richmond, Virginia 23219 / US
Opponent's representative
Sandmair, Kurt, Dr. Dr.
Patentanwälte Schwabe, Sandmair, Marx Stuntzstrasse 16
81677 München / DE
 02  11.12.1998    ADMISSIBLE
The Lubrizol Corporation
29400 Lakeland Boulevard
Wickliffe, Ohio 44092 / US
Opponent's representative
Tauchner, Paul, Dr.
Vossius & Partner Postfach 86 07 67
81634 München / DE
Former [1999/05]
Opponent(s)01  09.12.1998    ADMISSIBLE
Ethyl Corporation
330 South Fourth Street
Richmond, Virginia 23219 / US
Opponent's representative
Sandmair, Kurt, Dr. Dr.
Patentanwälte Schwabe, Sandmair, Marx Stuntzstrasse 16
81677 München / DE
01.02.1999Invitation to proprietor to file observations on the notice of opposition
11.10.1999Reply of patent proprietor to notice(s) of opposition
13.07.2000Date of oral proceedings
23.08.2000Despatch of interlocutory decision in opposition
23.08.2000Despatch of minutes of oral proceedings
24.11.2004Legal effect of revocation of patent [2005/18]
24.11.2004Despatch of communication that the patent will be revoked
Appeal following opposition18.09.2000Appeal received No.  T0946/00
27.12.2000Statement of grounds filed
24.11.2004Result of appeal procedure: revocation of the patent
24.11.2004Date of oral proceedings
02.12.2004Minutes of the oral proceedings despatched
Fees paidRenewal fee
07.12.1995Renewal fee patent year 03
09.12.1996Renewal fee patent year 04
05.12.1997Renewal fee patent year 05
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  TooltipAT11.03.1998
BE11.03.1998
CH11.03.1998
ES11.03.1998
GR11.03.1998
IT11.03.1998
LI11.03.1998
DK11.06.1998
SE11.06.1998
PT15.06.1998
IE20.12.1998
LU20.12.1998
MC30.06.1999
[2004/39]
Former [2003/45]AT11.03.1998
BE11.03.1998
CH11.03.1998
ES11.03.1998
GR11.03.1998
IT11.03.1998
LI11.03.1998
DK11.06.1998
SE11.06.1998
PT15.06.1998
IE20.12.1998
LU31.12.1998
MC30.06.1999
Former [2003/18]AT11.03.1998
BE11.03.1998
CH11.03.1998
ES11.03.1998
GR11.03.1998
IT11.03.1998
LI11.03.1998
SE11.06.1998
PT15.06.1998
IE20.12.1998
LU31.12.1998
MC30.06.1999
Former [2003/17]AT11.03.1998
BE11.03.1998
CH11.03.1998
ES11.03.1998
GR11.03.1998
IT11.03.1998
LI11.03.1998
SE11.06.1998
PT15.06.1998
IE20.12.1998
LU31.12.1998
MC01.07.1999
Former [2002/26]AT11.03.1998
BE11.03.1998
CH11.03.1998
ES11.03.1998
GR11.03.1998
IT11.03.1998
LI11.03.1998
SE11.06.1998
PT15.06.1998
IE20.12.1998
LU31.12.1998
MC30.06.1999
Former [2001/23]AT11.03.1998
BE11.03.1998
CH11.03.1998
GR11.03.1998
IT11.03.1998
LI11.03.1998
SE11.06.1998
PT15.06.1998
IE20.12.1998
LU31.12.1998
MC30.06.1999
Former [2000/27]AT11.03.1998
BE11.03.1998
CH11.03.1998
IT11.03.1998
LI11.03.1998
SE11.06.1998
PT15.06.1998
IE20.12.1998
LU31.12.1998
MC30.06.1999
Former [2000/23]AT11.03.1998
BE11.03.1998
CH11.03.1998
IT11.03.1998
LI11.03.1998
SE11.06.1998
PT15.06.1998
LU31.12.1998
MC30.06.1999
Former [2000/07]AT11.03.1998
BE11.03.1998
CH11.03.1998
IT11.03.1998
LI11.03.1998
SE11.06.1998
PT15.06.1998
LU31.12.1998
Former [1999/42]AT11.03.1998
BE11.03.1998
CH11.03.1998
IT11.03.1998
LI11.03.1998
SE11.06.1998
PT15.06.1998
Former [1998/50]AT11.03.1998
BE11.03.1998
CH11.03.1998
LI11.03.1998
SE11.06.1998
PT15.06.1998
Former [1998/49]AT11.03.1998
BE11.03.1998
SE11.06.1998
PT15.06.1998
Former [1998/47]AT11.03.1998
SE11.06.1998
PT15.06.1998
Former [1998/43]AT11.03.1998
SE11.06.1998
Former [1998/40]AT11.03.1998
Documents cited:Search   [ ] - No further relevant documents disclosed
International search[A]US4152499  (BOERZEL PAUL [DE], et al);
 [A]US4231759  (UDELHOFEN JOHN H, et al);
 [A]US4238628  (CAHILL PAUL J [US], et al);
 [A]US4605808  (SAMSON JOHN N R [GB]);
 [AP]US5192335  (CHERPECK RICHARD E [US])
otherUS4429099
    - KENNEDY J.P. ET AL, "New Telechelic Polymers and Sequential Copolymers by Polyfunctional Initiator-Transfer Agents (Inifers) - 27. Bisphenol- and Trisphenol-Polyisobutylenes", POLYMER BULLETIN, (1982), vol. 8, pages 563 - 570, XP000945404
    - SCHULZ R.C., "Reaktionen an Makromolekuelen", SCHULZ R.C., HOUBEN-WEYL, METHODEN DER ORGANISCHEN CHEMIE, STUTTGART, GEORG THIEME VERLAG, (1987), vol. E20, pages 608 - 612, ISBN 3-13-219004-7, XP000945405
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.