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Extract from the Register of European Patents

EP About this file: EP0592809

EP0592809 - Composite mixed conductor membranes for producing oxygen [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  28.08.2009
Database last updated on 29.03.2025
Most recent event   Tooltip11.03.2010New entry: Request for decision: result 
Applicant(s)For all designated states
AIR PRODUCTS AND CHEMICALS, INC.
7201 Hamilton Boulevard
Allentown, PA 18195-1501 / US
[1994/16]
Inventor(s)01 / Thorogood, Robert Michael
1950 Millcreek Road
Macungie, PA 18062 / US
02 / Srinivasan, Rajagopalan Sree
3714 Catherine Avenue
Allentown, PA 18103 / US
03 / Yee, Terrence Fu
303 Surrey Place
Macungie, PA 18062 / US
04 / Drake, Miles Patrick
1392 Highland Court
Allentown, PA 18103 / US
[1994/16]
Representative(s)Sommer, Andrea
Andrae l Westendorp
Patentanwälte Partnerschaft
Uhlandstrasse 2
80336 München / DE
[N/P]
Former [2009/25]Sommer, Andrea
Westendorp | Sommer Rumfordstraße 7
D-80469 München / DE
Former [1994/16]Sandmair, Kurt, Dr. Dr.
Patentanwälte Schwabe, Sandmair, Marx Stuntzstrasse 16
D-81677 München / DE
Application number, filing date93114421.608.09.1993
[1994/16]
Priority number, dateUS1992094532015.09.1992         Original published format: US 945320
[1994/16]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0592809
Date:20.04.1994
Language:EN
[1994/16]
Type: B1 Patent specification 
No.:EP0592809
Date:12.03.1997
Language:EN
[1997/11]
Search report(s)(Supplementary) European search report - dispatched on:EP01.02.1994
ClassificationIPC:B01D71/02, B01D53/22, C01B13/02, H01M8/12
[1994/16]
CPC:
C01B13/0255 (EP,KR,US); B01D71/0271 (EP,KR,US); B01D2325/26 (EP,KR,US);
C01B2210/0046 (EP,KR,US); Y10S505/701 (EP,KR,US); Y10S505/778 (EP,KR,US);
Y10S505/785 (EP,KR,US) (-)
Designated contracting statesDE,   ES,   FR,   GB,   IT,   NL [1994/16]
TitleGerman:Gemischt leitende Verbundmembranen zur Herstellung von Sauerstoff[1994/16]
English:Composite mixed conductor membranes for producing oxygen[1994/16]
French:Membranes composites mixtes conductrices pour la production d'oxygène[1994/16]
Examination procedure27.04.1994Examination requested  [1994/25]
14.06.1995Despatch of a communication from the examining division (Time limit: M07)
12.01.1996Reply to a communication from the examining division
29.02.1996Despatch of a communication from the examining division (Time limit: M02)
01.04.1996Reply to a communication from the examining division
28.05.1996Despatch of communication of intention to grant (Approval: Yes)
30.08.1996Communication of intention to grant the patent
08.11.1996Fee for grant paid
08.11.1996Fee for publishing/printing paid
21.08.2009Request for decision received: Various
12.03.2010Result of request for decision (Various): Request accepted
Opposition(s)Opponent(s)01  10.12.1997    ADMISSIBLE
Praxair Technology, Inc.
39 Old Ridgebury Road
Danbury, Ct. 06810-5113 / US
Opponents representative
Schwan, Gerhard
Schwan Schwan Schorer
Patentanwälte
Bauerstrasse 22
80796 München / DE
 [N/P]
Former [1998/06]
Opponent(s)01  10.12.1997    ADMISSIBLE
Praxair Technology, Inc.
39 Old Ridgebury Road
Danbury, Ct. 06810-5113 / US
Opponents representative
Schwan, Gerhard
Schwan Schwan Schorer Patentanwälte Bauerstrasse 22
80796 München / DE
deletedDeletion: Legal effect of rejection of opposition [ N /P ]
15.01.1998Invitation to proprietor to file observations on the notice of opposition
23.07.1998Reply of patent proprietor to notice(s) of opposition
09.06.1999Date of oral proceedings
15.07.1999Despatch of minutes of oral proceedings
15.07.1999Date of despatch of rejection of opposition
21.12.2005Despatch of minutes of oral proceedings
02.02.2006Date of oral proceedings
07.11.2006Date of oral proceedings
13.12.2006Despatch of interlocutory decision in opposition
13.12.2006Despatch of minutes of oral proceedings
04.12.2008Legal effect of revocation of patent [2009/40]
04.12.2008Despatch of communication that the patent will be revoked
Appeal following opposition08.02.2007Appeal received No.  T0271/07
19.04.2007Statement of grounds filed
04.12.2008Result of appeal procedure: revocation of the patent
22.09.1999Appeal received No.  T0932/99
25.11.1999Statement of grounds filed
03.08.2004Result of appeal procedure: continuation of opposition procedure
04.12.2008Date of oral proceedings
09.12.2008Minutes of the oral proceedings despatched
03.08.2004Date of oral proceedings
11.08.2004Minutes of the oral proceedings despatched
Fees paidRenewal fee
06.09.1995Renewal fee patent year 03
09.09.1996Renewal fee patent year 04
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Documents cited:Search[AD]JP61021717  ;
 [AD]EP0438902  (STANDARD OIL CO OHIO [US]);
 [A]WO9205862  (STANDARD OIL CO OHIO [US]);
 [AP]EP0550070  (AIR PROD & CHEM [US]);
 [AP]EP0550071  (AIR PROD & CHEM [US])
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.