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EP0531191
European procedure
Extract from the Register of European Patents
EP About this file: EP0531191
| EP0531191 - Process and apparatus for the separation of paraxylene in aromatic hydrocarbures with adsorption in simulated moving bed and one crystallisation step [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 19.04.1996 Database last updated on 26.03.2026 | Most recent event Tooltip | 19.04.1996 | No opposition filed within time limit | published on 05.06.1996 [1996/23] | Applicant(s) | For all designated states Institut Français du Pétrole 4, Avenue de Bois Préau 92502 Rueil-Malmaison / FR | [N/P] |
| Former [1993/10] | For all designated states INSTITUT FRANCAIS DU PETROLE 4, Avenue de Bois Préau F-92502 Rueil-Malmaison / FR | Inventor(s) | 01 /
Hotier, Gérard 39, avenue Berthelot F-92500 Rueil Malmaison / FR | 02 /
Roux Guerraz, Claude 52, Rue Claude Decaen F-75011 Paris / FR | 03 /
Nguyen Thanh, Than 22 bis, rue de Saint Fargeau F-75020 Paris / FR | [1995/23] |
| Former [1993/10] | 01 /
Hotier, Gérard 39, avenue Berthelot F-92500 Rueil Malmaison / FR | ||
| 02 /
Roux, Guerraz Claude 52, Rue Claude Decaen F-75011 Paris / FR | |||
| 03 /
Nguyen Thanh, Than 22 bis, rue de Saint Fargeau F-75020 Paris / FR | Application number, filing date | 92402355.9 | 27.08.1992 | [1993/10] | Priority number, date | FR19910011004 | 05.09.1991 Original published format: FR 9111004 | FR19920008497 | 06.07.1992 Original published format: FR 9208497 | FR19920008498 | 06.07.1992 Original published format: FR 9208498 | [1993/10] | Filing language | FR | Procedural language | FR | Publication | Type: | A1 Application with search report | No.: | EP0531191 | Date: | 10.03.1993 | Language: | FR | [1993/10] | Type: | B1 Patent specification | No.: | EP0531191 | Date: | 14.06.1995 | Language: | FR | [1995/24] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 08.01.1993 | Classification | IPC: | C07C15/08, C07C7/00 | [1993/10] | CPC: |
C07C15/08 (EP,KR,US);
C07C7/005 (EP,US);
C07C7/13 (EP,US);
C07C7/14 (EP,US)
| C-Set: |
C07C7/005, C07C15/08 (EP,US);
C07C7/13, C07C15/08 (US,EP);
C07C7/14, C07C15/08 (US,EP)
| Designated contracting states | BE, DE, DK, ES, IT, NL [1993/10] | Title | German: | Verfahren und Vorrichtung zur Paraxylentrennung aus aromatischen Kohlenwasserstoffen durch Adsorption mittels simulierten Wanderbettes und eine Kristallisierung | [1994/35] | English: | Process and apparatus for the separation of paraxylene in aromatic hydrocarbures with adsorption in simulated moving bed and one crystallisation step | [1993/10] | French: | Procédé et dispositif de séparation du paraxylène dans des hydrocarbures aromatiques avec une adsorption en lit mobile simulé et une cristallisation | [1993/10] |
| Former [1993/10] | Verfahren und Vorrichtung zur Paraxylentrennung aus aromatischen Kohlenwasserstoffen durch Adsorption mittels simulierten Wanderbettes und einer Kristallisierung | Examination procedure | 02.06.1993 | Examination requested [1993/31] | 20.07.1994 | Despatch of communication of intention to grant (Approval: No) | 23.11.1994 | Despatch of communication of intention to grant (Approval: later approval) | 08.12.1994 | Communication of intention to grant the patent | 20.03.1995 | Fee for grant paid | 20.03.1995 | Fee for publishing/printing paid | Opposition(s) | 15.03.1996 | No opposition filed within time limit [1996/23] | Fees paid | Renewal fee | 06.07.1994 | Renewal fee patent year 03 |
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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 | [AD] JP55139327 | [AD] PATENT ABSTRACTS OF JAPAN vol. 5, no. 12 (C-40)(684) 24 Janvier 1981 & JP-A-55 139 327 ( NIPPON KIHATSUYU K.K. ) 31 Octobre 1980 [AD] |