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EP0305720
European procedure
Extract from the Register of European Patents
EP About this file: EP0305720
| EP0305720 - Production of gaseous olefins by catalytic conversion of hydrocarbons [Right-click to bookmark this link] | Status | Patent maintained as amended Status updated on 18.01.2002 Database last updated on 11.04.2026 | Most recent event Tooltip | 05.10.2005 | Change: Appeal number | Applicant(s) | For all designated states CHINA PETROCHEMICAL CORPORATION A - 6 Huixin Dongjie, Chaoyang District Beijing 100029 / CN | For all designated states RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC 18 Xue Yuan Road Haidian District Beijing / CN | [N/P] |
| Former [1998/07] | For all designated states CHINA PETROCHEMICAL CORPORATION A - 6 Huixin Dongjie, Chaoyang District Beijing 100029 / CN | ||
| For all designated states RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC 18 Xue Yuan Road Haidian District Beijing / CN | |||
| Former [1989/10] | For all designated states RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC 18 Xue Yuan Road Haidian District Beijing / CN | Inventor(s) | 01 /
Zaiting, Li 18 Xue Yuan Road Haidian District Beijing / CN | 02 /
Shunhua, Liu 18 Xue Yuan Road Haidian District Beijing / CN | 03 /
Xingpin, Ge 18 Xue Yuan Road Haidian District Beijing / CN | [1989/10] | Representative(s) | Schupfner, Gerhard D., et al Müller Schupfner & Partner Patentanwälte Parkstrasse 1 21244 Buchholz / DE | [N/P] |
| Former [1989/10] | Schupfner, Gerhard D., et al Patentanwälte Müller, Schupfner & Gauger Postfach 17 53 D-21236 Buchholz / DE | Application number, filing date | 88111807.9 | 22.07.1988 | [1989/10] | Priority number, date | CN1987105428 | 08.08.1987 Original published format: CN 87105428 | [1989/10] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0305720 | Date: | 08.03.1989 | Language: | EN | [1989/10] | Type: | A3 Search report | No.: | EP0305720 | Date: | 07.03.1990 | Language: | EN | [1990/10] | Type: | B1 Patent specification | No.: | EP0305720 | Date: | 13.04.1994 | Language: | EN | [1994/15] | Type: | B2 New European patent specification | No.: | EP0305720 | Date: | 06.03.2002 | Language: | EN | [2002/10] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 16.01.1990 | Classification | IPC: | C10G11/20, C10G11/18, C10G11/05 | [1989/10] | CPC: |
C10G11/16 (EP,US);
C10G11/18 (EP,US)
| Designated contracting states | DE, FR, GB [1989/10] | Title | German: | Herstellung von gasförmigen Olefinen durch katalytische Konvertierung von Kohlenwasserstoffen | [1989/10] | English: | Production of gaseous olefins by catalytic conversion of hydrocarbons | [1989/10] | French: | Production d'oléfines gazeuses par conversion catalytique d'hydrocarbures | [1989/10] | Examination procedure | 26.06.1990 | Examination requested [1990/34] | 04.04.1991 | Despatch of a communication from the examining division (Time limit: M06) | 14.10.1991 | Reply to a communication from the examining division | 30.01.1992 | Despatch of a communication from the examining division (Time limit: M04) | 09.06.1992 | Reply to a communication from the examining division | 08.12.1992 | Despatch of a communication from the examining division (Time limit: M02) | 13.01.1993 | Reply to a communication from the examining division | 16.07.1993 | Despatch of communication of intention to grant (Approval: Yes) | 12.10.1993 | Communication of intention to grant the patent | 05.01.1994 | Fee for grant paid | 05.01.1994 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
12.01.1995
25.01.1995
ADMISSIBLE Akzo Nobel N.V. Velperweg 76 NL-6824 BM Arnhem / NL Opponent's representative van Deursen, Petrus Hubertus Akzo Nobel N.V. Intellectual Property Department P.O. Box 9300 6800 SB Arnhem / NL | [N/P] |
| Former [1995/10] | |||
| Opponent(s) | 01
12.01.1995
25.01.1995
ADMISSIBLE Akzo Nobel N.V. Velperweg 76 NL-6824 BM Arnhem / NL Opponent's representative Van Deursen, Petrus Hubertus Akzo Patent Department P.O. Box 9300 NL-6800 SB Arnhem / NL | 28.02.1995 | Invitation to proprietor to file observations on the notice of opposition | 02.09.1995 | Reply of patent proprietor to notice(s) of opposition | 20.02.1997 | Date of oral proceedings | 09.04.1997 | Despatch of minutes of oral proceedings | 01.12.2000 | Despatch of a communication from the opposition division (Time limit: M02) | 12.02.2001 | Reply to a communication from the opposition division | 10.05.2001 | Despatch of interlocutory decision in opposition | 20.05.2001 | Legal effect of interlocutory decision in opposition | 20.09.2001 | Despatch of communication that the patent will be maintained as amended | 21.12.2001 | Fee for printing new specification paid | Appeal following opposition | 09.06.1997 | Appeal received No. T0609/97 | 08.08.1997 | Statement of grounds filed | 20.10.2000 | Result of appeal procedure: maintenance in amended form | 20.10.2000 | Date of oral proceedings | 27.10.2000 | Minutes of the oral proceedings despatched | Fees paid | Renewal fee | 23.07.1990 | Renewal fee patent year 03 | 30.11.1990 | Renewal fee patent year 04 | 28.07.1992 | Renewal fee patent year 05 | 15.07.1993 | Renewal fee patent year 06 |
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