blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

Italy joins the Federated Register

Click here for more information on the Federated Register.

2025-06-12

More...
blank Related links

Release notes
European Patent Register Assistant
European Patent Register User Manual
European Patent Register – pocket guide
FAQ - European Patent Register
Federated Register (Flyer)
Global Dossier (Flyer)
Register events
Deep link coverage
Federated Register content
The Patent Information Tour
Fair use charter

Extract from the Register of European Patents

EP About this file: EP0367280

EP0367280 - Particle filter system [Right-click to bookmark this link]
StatusPatent maintained as amended
Status updated on  20.02.1998
Database last updated on 21.03.2026
Most recent event   Tooltip05.10.2005Change: Appeal number 
Applicant(s)For all designated states
DEUTZ Aktiengesellschaft
Deutz-Mülheimer Strasse 147-149
51063 Köln / DE
[1998/15]
Former [1997/18]For all designated states
DEUTZ Aktiengesellschaft
Deutz-Mülheimer Str. 147-149
51063 Köln / DE
Former [1992/03]For all designated states
Klöckner-Humboldt-Deutz Aktiengesellschaft
Nikolaus-August-Otto-Allee 2
D-51149 Köln / DE
Former [1990/19]For all designated states
Klöckner-Humboldt-Deutz Aktiengesellschaft
Nikolaus-August-Otto-Allee 2
D-51149 Köln / DE
Inventor(s)01 / Berendes, Heinrich Dipl.-Ing.
Stresemann Str. 5
5000 Köln 90 / DE
[1990/19]
Application number, filing date89120374.703.11.1989
[1990/19]
Priority number, dateDE1988383747204.11.1988         Original published format: DE 3837472
[1990/19]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0367280
Date:09.05.1990
Language:DE
[1990/19]
Type: B1 Patent specification 
No.:EP0367280
Date:26.08.1992
Language:DE
[1992/35]
Type: B2 New European patent specification 
No.:EP0367280
Date:08.04.1998
Language:DE
[1998/15]
Search report(s)(Supplementary) European search report - dispatched on:EP21.03.1990
ClassificationIPC:F01N3/02
[1990/19]
CPC:
F01N3/025 (EP,US); F01N2240/14 (EP,US); F01N3/30 (EP,US);
F01N3/36 (EP,US); F02B3/06 (EP,US); Y10S55/30 (EP,US)
Designated contracting statesAT,   DE,   FR,   GB,   IT,   NL [1990/19]
TitleGerman:Partikelfiltersystem[1990/19]
English:Particle filter system[1990/19]
French:Système de filtre de particules[1990/19]
Examination procedure26.04.1990Examination requested  [1990/26]
27.03.1991Despatch of a communication from the examining division (Time limit: M04)
17.05.1991Reply to a communication from the examining division
03.07.1991Despatch of a communication from the examining division (Time limit: M04)
12.09.1991Reply to a communication from the examining division
25.09.1991Despatch of a communication from the examining division (Time limit: M04)
10.10.1991Reply to a communication from the examining division
14.11.1991Despatch of communication of intention to grant (Approval: Yes)
02.03.1992Communication of intention to grant the patent
07.03.1992Fee for grant paid
07.03.1992Fee for publishing/printing paid
28.06.1993Request for decision received: (all rights)
11.08.1993Result of request for decision ((all rights)): Request accepted
Opposition(s)Opponent(s)01  11.05.1993  05.08.1993  ADMISSIBLE
Zeuna-Stärker GmbH & Co. KG
Aeussere Uferstrasse 61-73 Postfach 102669
D-86154 Augsburg / DE
Opponents representative
Grättinger Möhring von Poschinger Patentanwälte Partnerschaft mbB, et al, et al
Postfach 16 55
82306 Starnberg / DE
 [N/P]
Former [1993/27]
Opponent(s)01  11.05.1993  05.08.1993  ADMISSIBLE
Zeuna-Stärker GmbH & Co. KG
Aeussere Uferstrasse 61-73 Postfach 102669
D-86154 Augsburg / DE
Opponents representative
Grättinger & Partner, et al, et al
Postfach 16 55
D-82306 Starnberg / DE
25.05.1993No. 01: Notification indicating deficiencies in the notice of opposition
04.06.1993No. 01: Reply to notification indicating deficiencies in the notice of opposition
11.08.1993Invitation to proprietor to file observations on the notice of opposition
18.09.1993Reply of patent proprietor to notice(s) of opposition
24.09.1993Communication of observations of patent proprietor (Time limit: M02)
26.10.1993Reply of parties involved to observations of patent proprietor
12.10.1994Date of oral proceedings
28.10.1994Despatch of minutes of oral proceedings
28.10.1994Despatch of communication that the patent will be revoked
27.11.1996Despatch of a communication from the opposition division (Time limit: M04)
19.03.1997Reply to a communication from the opposition division
30.04.1997Despatch of a communication from the opposition division (Time limit: M02)
09.05.1997Reply to a communication from the opposition division
07.10.1997Despatch of interlocutory decision in opposition
17.10.1997Legal effect of interlocutory decision in opposition
28.01.1998Despatch of communication that the patent will be maintained as amended
04.02.1998Fee for printing new specification paid
Appeal following opposition09.11.1994Appeal received No.  T0871/94
18.02.1995Statement of grounds filed
24.10.1996Result of appeal procedure: continuation of opposition procedure
24.10.1996Date of oral proceedings
05.11.1996Minutes of the oral proceedings despatched
Fees paidRenewal fee
11.10.1991Renewal fee patent year 03
Penalty fee
Penalty fee Rule 85a EPC 1973
21.12.1989AT   M01   Fee paid on   19.01.1990
21.12.1989DE   M01   Fee paid on   19.01.1990
21.12.1989FR   M01   Fee paid on   19.01.1990
21.12.1989GB   M01   Fee paid on   19.01.1990
21.12.1989IT   M01   Fee paid on   19.01.1990
21.12.1989NL   M01   Fee paid on   19.01.1990
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  TooltipGB26.08.1992
NL26.08.1992
AT03.11.1992
FR29.07.1994
[1995/08]
Former [1994/19]GB26.08.1992
NL26.08.1992
AT03.11.1992
Former [1993/47]GB26.08.1992
NL26.08.1992
Former [1993/15]NL26.08.1992
Documents cited:Search[A] JP57160075  
 [X] US4677823  (HARDY JAMES A et al.) [X]
 [AD] EP0306743  (DEUTSCHE FORSCH LUFT RAUMFAHRT et al.) [AD]
 [A] US4538413  (SHINZAWA MOTOHIRO et al.) [A]
 [A] DE2004909   [A]
 [A] DE3219948  (BAYERISCHE MOTOREN WERKE AG et al.) [A]
 [A] DE3121274  (BOSCH GMBH ROBERT et al.) [A]
 [A]   PATENT ABSTRACTS OF JAPAN, Band 8, Nr. 152 (M-309)[1589], 14. Juli 1984; & JP-A-57 160 075 (MITSUBISHI DENKI K.K.) 21-03-1984 [A]
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.