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Extract from the Register of European Patents

EP About this file: EP0512635

EP0512635 - A process for the production of isoparaffins [Right-click to bookmark this link]
StatusPatent maintained as amended
Status updated on  13.10.2000
Database last updated on 24.04.2024
Most recent event   Tooltip13.10.2000Patent maintained (B2 publication)published on 29.11.2000 [2000/48]
Applicant(s)For all designated states
Shell Internationale Research Maatschappij B.V.
Carel van Bylandtlaan 30
2596 HR Den Haag / NL
[N/P]
Former [2000/48]For all designated states
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
Carel van Bylandtlaan 30
2596 HR Den Haag / NL
Former [1992/46]For all designated states
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
Carel van Bylandtlaan 30
NL-2596 HR Den Haag / NL
Inventor(s)01 / Sie, Swan Tiong
Badhuisweg 3
NL-1031 CM Amsterdam / NL
[1992/46]
Application number, filing date92201247.104.05.1992
[1992/46]
Priority number, dateGB1991000974707.05.1991         Original published format: GB 9109747
[1992/46]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0512635
Date:11.11.1992
Language:EN
[1992/46]
Type: A3 Search report 
No.:EP0512635
Date:02.02.1994
Language:EN
[1994/05]
Type: B1 Patent specification 
No.:EP0512635
Date:22.01.1997
Language:EN
[1997/04]
Type: B2 New European patent specification 
No.:EP0512635
Date:29.11.2000
Language:EN
[2000/48]
Search report(s)(Supplementary) European search report - dispatched on:EP07.12.1993
ClassificationIPC:C07C1/08, C07C1/04
[1994/03]
CPC:
C10G45/64 (EP,US); C07C1/043 (EP,US); C07C1/0485 (EP,US);
C07C4/06 (EP,US); C07C9/00 (EP,US); C10G2/33 (EP,US);
C07C2521/04 (EP,US); C07C2521/06 (EP,US); C07C2521/08 (EP,US);
C07C2521/12 (EP,US); C07C2523/26 (EP,US); C07C2523/36 (EP,US);
C07C2523/46 (EP,US); C07C2523/75 (EP,US); C07C2529/08 (EP,US);
C07C2529/18 (EP,US); C07C2529/70 (EP,US) (-)
C-Set:
C07C1/043, C07C9/00 (EP,US);
C07C1/0485, C07C9/00 (US,EP);
C07C4/06, C07C9/00 (US,EP)
Former IPC [1992/46]C07C1/08
Designated contracting statesBE,   DE,   DK,   FR,   GB,   IT,   NL,   SE [1992/46]
TitleGerman:Verfahren zur Herstellung von Isoparaffinen[1992/46]
English:A process for the production of isoparaffins[1992/46]
French:Procédé pour la fabrication des isoparaffines[1992/46]
Examination procedure15.06.1994Examination requested  [1994/32]
16.08.1995Despatch of a communication from the examining division (Time limit: M04)
05.12.1995Reply to a communication from the examining division
05.02.1996Despatch of communication of intention to grant (Approval: Yes)
18.03.1996Communication of intention to grant the patent
09.05.1996Fee for grant paid
09.05.1996Fee for publishing/printing paid
Opposition(s)Opponent(s)01  16.10.1997    ADMISSIBLE
Exxon Research and Engineering Company
P.O. Box 390 Florham Park
New Jersey 07932 / US
Opponent's representative
Somers, Harold Arnold
ESSO Engineering (Europe) Ltd.
Patents & Licences
Mailpoint 12
Esso House, Ermyn Way
Leatherhead, Surrey KT22 8XE / GB
 [N/P]
Former [1997/50]
Opponent(s)01  16.10.1997    ADMISSIBLE
Exxon Research and Engineering Company
P.O. Box 390 Florham Park
New Jersey 07932 / US
Opponent's representative
Somers, Harold Arnold
ESSO Engineering (Europe) Ltd. Patents & Licences Mailpoint 12 Esso House Ermyn Way
Leatherhead, Surrey KT22 8XE / GB
28.11.1997Invitation to proprietor to file observations on the notice of opposition
30.06.1998Reply of patent proprietor to notice(s) of opposition
02.02.2000Legal effect of interlocutory decision in opposition
02.02.2000Date of oral proceedings
21.03.2000Despatch of interlocutory decision in opposition
21.03.2000Despatch of minutes of oral proceedings
07.07.2000Despatch of communication that the patent will be maintained as amended
24.08.2000Fee for printing new specification paid
Fees paidRenewal fee
30.05.1994Renewal fee patent year 03
24.05.1995Renewal fee patent year 04
29.05.1996Renewal fee patent year 05
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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[A]US4423265  (CHU YUNG-FENG [US], et al) [A] 1,2,5,8,9 * claims 1,3-6,8-11 * * column 3, line 5 - line 45 *;
 [DA]EP0147873  (SHELL INT RESEARCH [NL]) [DA] 1-4 * claims 1-10 ** example 8 *
OppositionUS3755144
 US4176053
 US4210771
 US4385193
 EP0127220
 US4522939
 US4709116
 EP0256604
 US4804802
 US4855529
 US4956521
 US5292983
    - J. EILERS et al, The Shell Middle Distillate Synthesis Process (SMDS), Catalyst Letters, 7, March 1990, 253-270
    - M. F. SYMONIAK et al, Isomerize Light Naphthas, Paper no. AM-83.57, National Petroleum Refiners' Association Meeting, San Francisco, March 20-23, 1983
    - M. F. SYMONIAK, Processing Light Naphtha: The Last Virgin, May1980
    - Encyclopedia of Chemical Technology, Kirk Othmer, 1978, John Wiley & Sons, pp. 544-581
    - Erdöl, Ergas, Kohle, July/August 1986, The Shell Middle Distillate Synthesis Process, M. J. v.d.Burgt et al, pp. 351-354
    - ACS Symposium, September 20, 1975, 1-27, J. Weitkamp, The Influence of Chain Length in Hydrocracking and Hydroisomerization of n-Alkanes
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.