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EP0839782
European procedure
Extract from the Register of European Patents
EP About this file: EP0839782
| EP0839782 - Process for the inhibition of coke formation in pyrolysis furnaces [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 02.02.2001 Database last updated on 20.12.2024 | Most recent event Tooltip | 26.09.2003 | Lapse of the patent in a contracting state | published on 12.11.2003 [2003/46] | Applicant(s) | For all designated states NALCO/EXXON ENERGY CHEMICALS, L.P. 7705 Highway 90-A Sugarland, TX 77478 / US | [1998/19] | Inventor(s) | 01 /
Tong, Youdong 2111 Holly Hall 1510 Houston, Texas / US | 02 /
Poindexter, Michael K. 15700 Lexington Blvd no. 214 Sugar Land, Texas 77478 / US | 03 /
Rowe, Tom C. 3930 East Creek Club Road Missouri City, Texas 77459 / US | [1998/19] | Representative(s) | Harrison, David Christopher, et al Mewburn Ellis LLP City Tower 40 Basinghall Street London EC2V 5DE / GB | [N/P] |
| Former [1998/19] | Harrison, David Christopher, et al MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP / GB | Application number, filing date | 96307868.8 | 30.10.1996 | [1998/19] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0839782 | Date: | 06.05.1998 | Language: | EN | [1998/19] | Type: | B1 Patent specification | No.: | EP0839782 | Date: | 05.04.2000 | Language: | EN | [2000/14] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 10.04.1997 | Classification | IPC: | C07C4/06, C10G9/16, C10G75/04 | [1998/19] | CPC: |
C07C4/04 (EP);
C07C7/20 (EP);
C10G9/16 (EP)
| Designated contracting states | BE, DE, DK, ES, FI, FR, GB, IT, NL [2000/07] |
| Former [1999/03] | AT, BE, DE, DK, ES, FI, FR, GB, IT, NL, PT | ||
| Former [1998/19] | AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LI, LU, MC, NL, PT, SE | Title | German: | Verfahren zur Hemmung von Verkoken in Pyrolyse-Ofen | [1998/19] | English: | Process for the inhibition of coke formation in pyrolysis furnaces | [1998/19] | French: | Procédé pour l'inhibition de la formation de coke dans les fours de pyrolyse | [1998/19] | Examination procedure | 31.08.1998 | Examination requested [1998/44] | 01.12.1998 | Despatch of a communication from the examining division (Time limit: M04) | 08.04.1999 | Reply to a communication from the examining division | 18.05.1999 | Despatch of a communication from the examining division (Time limit: M04) | 14.06.1999 | Reply to a communication from the examining division | 02.09.1999 | Despatch of communication of intention to grant (Approval: Yes) | 08.10.1999 | Communication of intention to grant the patent | 31.12.1999 | Fee for grant paid | 31.12.1999 | Fee for publishing/printing paid | Opposition(s) | 06.01.2001 | No opposition filed within time limit [2001/12] | Fees paid | Renewal fee | 05.10.1998 | Renewal fee patent year 03 | 04.10.1999 | Renewal fee patent year 04 |
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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. | Lapses during opposition Tooltip | DK | 30.10.2000 | [2003/46] | Documents cited: | Search | [XA]US5460712 (LEMKE HARALD K [US]) [X] 1-9,12-22 * the whole document * [A] 10,11; | [XA]US5271824 (FORESTER DAVID R [US], et al) [X] 1-9,12-22 * the whole document * [A] 10,11; | [XA]US5221461 (HENRICI INGE K [US], et al) [X] 1-9,12-22 * the whole document * [A] 10,11; | [XA]US4456526 (MILLER RICHARD F [US], et al) [X] 1-9,12-22 * the whole document * [A] 10,11; | [XA]US4440625 (GO TING S L [US], et al) [X] 1-9,12-22 * the whole document * [A] 10,11; | [XA]US3574088 (BSHARAH LEWIS, et al) [X] 1-9,12-22 * the whole document * [A] 10,11; | [XA]US3437583 (GONZALEZ GERARDO A) [X] 1-9,12-22 * the whole document * [A] 10,11; | [XA]JPS61166882 | [XA] - PATENT ABSTRACTS OF JAPAN, (19861212), vol. 010, no. 373, Database accession no. (C - 391), & JP61166882 A 19860728 (HAKUTOU KAGAKU KK) [X] 1-9,12-22 * abstract * [A] 10,11 | by applicant | US4176045 | DD222324 | US4599480 |