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Extract from the Register of European Patents

EP About this file: EP0742915

EP0742915 - MULTISTABLE CHIRAL NEMATIC DISPLAYS [Right-click to bookmark this link]
StatusOpposition procedure closed
Status updated on  31.10.2014
Database last updated on 11.05.2024
Most recent event   Tooltip31.10.2014Opposition procedure terminated - date of legal effect publishedpublished on 03.12.2014  [2014/49]
Applicant(s)For all designated states
KENT STATE UNIVERSITY
East Main & Lincoln Streets
Kent, OH 44242 / US
[1996/47]
Inventor(s)01 / WEST, John
5050 Fish Creek Road
Stow, OH 44224 / US
02 / YANG, Deng-Ke
826 Allerton Street
Kent, OH 44240 / US
[1996/47]
Representative(s)Appelt, Christian W., et al
Boehmert & Boehmert
Anwaltspartnerschaft mbB
Pettenkoferstrasse 22
80336 München / DE
[N/P]
Former [2008/44]Appelt, Christian W., et al
Forrester & Boehmert Pettenkoferstrasse 20-22
80336 München / DE
Former [2006/17]Appelt, Christian W., et al
FORRESTER & BOEHMERT Anwaltssozietät Pettenkoferstrasse 20-22
80336 München / DE
Former [2003/24]Peel, James Peter, et al
Barker Brettell, 10-12 Priests Bridge
London SW15 5JE / GB
Former [1996/47]Adams, William Gordon, et al
RAWORTH, MOSS & COOK 36 Sydenham Road
Croydon Surrey CR0 2EF / GB
Application number, filing date93924954.619.10.1993
[1996/47]
WO1993US09999
Priority number, dateUS1992096909330.10.1992         Original published format: US 969093
WO1992US0936730.10.1992         Original published format: PCT/US92/09367
US1993005766204.05.1993         Original published format: US 57662
[1996/47]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9410260
Date:11.05.1994
Language:EN
[1994/11]
Type: A1 Application with search report 
No.:EP0742915
Date:20.11.1996
Language:EN
The application published by WIPO in one of the EPO official languages on 11.05.1994 takes the place of the publication of the European patent application.
[1996/47]
Type: B1 Patent specification 
No.:EP0742915
Date:28.11.2001
Language:EN
[2001/48]
Search report(s)International search report - published on:US11.05.1994
(Supplementary) European search report - dispatched on:EP19.07.1996
ClassificationIPC:G02F1/137, C09K19/02, C09K19/58
[1996/47]
CPC:
C09K19/0208 (EP); C09K19/542 (EP); C09K19/544 (EP);
C09K19/586 (EP); G02F1/13718 (EP); G02F1/13345 (EP)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IE,   IT,   LI,   LU,   MC,   NL,   PT,   SE [1996/47]
TitleGerman:MULTISTABILER CHIRALE NEUMATISCHE ANZEIGEVORRICHTUNG[1996/47]
English:MULTISTABLE CHIRAL NEMATIC DISPLAYS[1996/47]
French:AFFICHAGES NEMATIQUES MULTISTABLES CHIRAUX[1996/47]
Entry into regional phase02.05.1995National basic fee paid 
02.05.1995Search fee paid 
02.05.1995Designation fee(s) paid 
02.05.1995Examination fee paid 
Examination procedure18.04.1994Request for preliminary examination filed
International Preliminary Examining Authority: US
02.05.1995Examination requested  [1996/47]
11.05.1999Despatch of a communication from the examining division (Time limit: M06)
16.11.1999Reply to a communication from the examining division
02.06.2000Despatch of a communication from the examining division (Time limit: M04)
15.09.2000Reply to a communication from the examining division
20.07.2001Despatch of communication of intention to grant (Approval: Yes)
21.09.2001Fee for grant paid
21.09.2001Fee for publishing/printing paid
28.09.2001Communication of intention to grant the patent
Opposition(s)Opponent(s)01  28.08.2002  17.09.2002  ADMISSIBLE
Systems Quasi-Recursive Ltd
POB 398, Suite B, 3rd Floor Regal House, Queensway
Gibraltar / GI
Opponent's representative
Radkov, Stoyan Atanassov
Urquhart-Dykes & Lord LLP
Euston House
24 Eversholt Street
London NW1 1AD / GB
 02  28.08.2002  17.09.2002  ADMISSIBLE
Asahi Glass Company Limited
Shin-Marunouchi Building
1-5-1 Marunouchi
Chiyoda-ku
Tokyo 100-8405 / JP
Opponent's representative
Müller-Boré & Partner Patentanwälte PartG mbB
Friedenheimer Brücke 21
80639 München / DE
 [N/P]
Former [2014/15]
Opponent(s)01  28.08.2002  17.09.2002  ADMISSIBLE
Systems Quasi-Recursive Ltd
POB 398, Suite B, 3rd Floor Regal House, Queensway
Gibraltar / GI
Opponent's representative
Radkov, Stoyan Atanassov
Urquhart-Dykes & Lord LLP The Podium
1 Eversholt Street
London NW1 2DN / GB
 02  28.08.2002  17.09.2002  ADMISSIBLE
Asahi Glass Company Limited
Shin-Marunouchi Building
1-5-1 Marunouchi
Chiyoda-ku
Tokyo 100-8405 / JP
Opponent's representative
Müller-Boré & Partner Patentanwälte PartG mbB
Friedenheimer Brücke 21
80639 München / DE
Former [2014/12]
Opponent(s)01  28.08.2002  17.09.2002  ADMISSIBLE
Systems Quasi-Recursive Ltd
POB 398, Suite B, 3rd Floor Regal House, Queensway
Gibraltar / GI
Opponent's representative
O'Brien, Niall James
Urquhart-Dykes & Lord LLP 30 Welbeck Street London
W1G 8ER / GB
 02  28.08.2002  17.09.2002  ADMISSIBLE
Asahi Glass Company Limited
Shin-Marunouchi Building
1-5-1 Marunouchi
Chiyoda-ku
Tokyo 100-8405 / JP
Opponent's representative
Müller-Boré & Partner Patentanwälte PartG mbB
Grafinger Straße 2
81671 München / DE
Former [2011/43]
Opponent(s)01  28.08.2002  17.09.2002  ADMISSIBLE
Systems Quasi-Recursive Ltd
POB 398, Suite B, 3rd Floor Regal House, Queensway
Gibraltar / GI
Opponent's representative
O'Brien, Niall James
Urquhart-Dykes & Lord LLP 30 Welbeck Street London
W1G 8ER / GB
 02  28.08.2002  17.09.2002  ADMISSIBLE
Asahi Glass Company Limited
Shin-Marunouchi Building
1-5-1 Marunouchi
Chiyoda-ku
Tokyo 100-8405 / JP
Opponent's representative
Schiuma, Daniele Wolfgang
Müller-Boré & Partner Grafinger Strasse 2
81671 München / DE
Former [2005/50]
Opponent(s)01  28.08.2002  17.09.2002  ADMISSIBLE
Systems Quasi-Recursive Ltd
POB 398, Suite B, 3rd Floor Regal House, Queensway
Gibraltar / GI
Opponent's representative
O'Brien, Niall James
Urquhart-Dykes & Lord LLP 30 Welbeck Street
GB-London W1G 8ER / GB
 02  28.08.2002  17.09.2002  ADMISSIBLE
ASAHI GLASS COMPANY, LTD.
1-2 Marunouchi 2-chome
Chiyoda-ku, TOKYO 100 / JP
Opponent's representative
Schiuma, Daniele Wolfgang
Müller-Boré & Partner, Grafinger Strasse 2
81671 München / DE
Former [2003/24]
Opponent(s)01  28.08.2002  17.09.2002  ADMISSIBLE
Systems Quasi-Recursive Ltd
POB 398, Suite B, 3rd Floor; Regal House, Queensway
Gibraltar / ES
Opponent's representative
Rees, Alexander Ellison
Urquhart-Dykes & Lord, 30 Welbeck Street
London W1G 8ER / GB
 02  28.08.2002  17.09.2002  ADMISSIBLE
ASAHI GLASS COMPANY, LTD.
1-2 Marunouchi 2-chome
Chiyoda-ku, TOKYO 100 / JP
Opponent's representative
Schiuma, Daniele Wolfgang
Müller-Boré & Partner, Grafinger Strasse 2
81671 München / DE
Former [2003/16]
Opponent(s)01  28.08.2002  17.09.2002  ADMISSIBLE
Systems Quasi-Recursive Ltd
POB 398, Suite B, 3rd Floor; Regal House, Queensway
Gibraltar / ES
Opponent's representative
Peel, James Peter
Barker Brettell, 138 Hagley Road, Edgbaston
Birmingham B16 9PW / GB
 02  28.08.2002  17.09.2002  ADMISSIBLE
ASAHI GLASS COMPANY, LTD.
1-2 Marunouchi 2-chome
Chiyoda-ku, TOKYO 100 / JP
Opponent's representative
Schiuma, Daniele Wolfgang
Müller-Boré & Partner, Grafinger Strasse 2
81671 München / DE
Former [2002/43]
Opponent(s)01  28.08.2002  17.09.2002  ADMISSIBLE
Systems Quasi-Recursive Ltd
POB 398, Suite B, 3rd Floor; Regal House, Queensway
Gibraltar / ES
Opponent's representative
Rees, Alexander Ellison
Urquhart-Dykes & Lord, 30 Welbeck Street
London W1G 8ER / GB
 02  28.08.2002  17.09.2002  ADMISSIBLE
ASAHI GLASS COMPANY, LTD.
1-2 Marunouchi 2-chome
Chiyoda-ku, TOKYO 100 / JP
Opponent's representative
Schiuma, Daniele Wolfgang
Müller-Boré & Partner, Grafinger Strasse 2
81671 München / DE
14.10.2002Invitation to proprietor to file observations on the notice of opposition
16.06.2003Reply of patent proprietor to notice(s) of opposition
30.06.2003Communication of observations of patent proprietor (Time limit: M06)
09.01.2004Reply of parties involved to observations of patent proprietor
28.10.2005Date of oral proceedings
15.12.2005Despatch of minutes of oral proceedings
15.12.2005Despatch of communication that the patent will be revoked
14.07.2014Despatch of communication that the opposition procedure will be closed
24.07.2014Legal effect of closure of opposition procedure [2014/49]
Appeal following opposition24.02.2006Appeal received No.  T0348/06
25.04.2006Statement of grounds filed
30.07.2008Result of appeal procedure: continuation of opposition procedure
30.07.2008Date of oral proceedings
04.08.2008Minutes of the oral proceedings despatched
Fees paidRenewal fee
29.09.1995Renewal fee patent year 03
30.10.1996Renewal fee patent year 04
30.01.1998Renewal fee patent year 05
26.09.1998Renewal fee patent year 06
24.09.1999Renewal fee patent year 07
31.10.2000Renewal fee patent year 08
21.09.2001Renewal fee patent year 09
Penalty fee
Additional fee for renewal fee
31.10.199705   M06   Fee paid on   30.01.1998
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  TooltipAT28.11.2001
BE28.11.2001
CH28.11.2001
GR28.11.2001
LI28.11.2001
DK28.02.2002
PT28.02.2002
ES30.05.2002
LU19.10.2002
IE21.10.2002
MC01.05.2003
FR30.06.2005
IT19.10.2005
SE20.10.2005
GB19.10.2008
NL01.05.2012
DE22.10.2013
[2014/10]
Former [2010/05]AT28.11.2001
BE28.11.2001
CH28.11.2001
GR28.11.2001
LI28.11.2001
DK28.02.2002
PT28.02.2002
ES30.05.2002
LU19.10.2002
IE21.10.2002
MC01.05.2003
FR30.06.2005
IT19.10.2005
SE20.10.2005
GB19.10.2008
Former [2007/34]AT28.11.2001
BE28.11.2001
CH28.11.2001
GR28.11.2001
LI28.11.2001
DK28.02.2002
PT28.02.2002
ES30.05.2002
LU19.10.2002
IE21.10.2002
MC01.05.2003
FR30.06.2005
IT19.10.2005
SE20.10.2005
Former [2006/44]AT28.11.2001
BE28.11.2001
CH28.11.2001
GR28.11.2001
LI28.11.2001
DK28.02.2002
PT28.02.2002
ES30.05.2002
LU19.10.2002
IE21.10.2002
MC01.05.2003
FR30.06.2005
SE20.10.2005
Former [2006/37]AT28.11.2001
BE28.11.2001
CH28.11.2001
GR28.11.2001
LI28.11.2001
DK28.02.2002
PT28.02.2002
ES30.05.2002
LU19.10.2002
IE21.10.2002
FR30.06.2005
SE20.10.2005
Former [2006/14]AT28.11.2001
BE28.11.2001
CH28.11.2001
GR28.11.2001
LI28.11.2001
DK28.02.2002
PT28.02.2002
ES30.05.2002
LU19.10.2002
IE21.10.2002
FR30.06.2005
Former [2004/39]AT28.11.2001
BE28.11.2001
CH28.11.2001
GR28.11.2001
LI28.11.2001
DK28.02.2002
PT28.02.2002
ES30.05.2002
LU19.10.2002
IE21.10.2002
Former [2004/04]AT28.11.2001
BE28.11.2001
CH28.11.2001
GR28.11.2001
LI28.11.2001
DK28.02.2002
PT28.02.2002
ES30.05.2002
IE21.10.2002
Former [2004/01]AT28.11.2001
BE28.11.2001
CH28.11.2001
GR28.11.2001
LI28.11.2001
DK28.02.2002
PT28.02.2002
IE21.10.2002
Former [2003/45]AT28.11.2001
BE28.11.2001
CH28.11.2001
GR28.11.2001
LI28.11.2001
DK28.02.2002
PT28.02.2002
Former [2003/09]AT28.11.2001
BE28.11.2001
CH28.11.2001
GR28.11.2001
LI28.11.2001
PT28.02.2002
Former [2003/06]BE28.11.2001
CH28.11.2001
GR28.11.2001
LI28.11.2001
PT28.02.2002
Former [2003/01]CH28.11.2001
GR28.11.2001
LI28.11.2001
PT28.02.2002
Former [2002/49]GR28.11.2001
PT28.02.2002
Former [2002/48]PT28.02.2002
Documents cited:Search   [ ] - No further relevant documents disclosed
International search[Y]US3680950  (HAAS WERNER E L, et al);
 [Y]US3806230  (HAAS W);
 [Y]US3947183  (HAAS WERNER E L, et al);
 [X]US4097127  (HAAS WERNER E L, et al);
 [Y]US4408201  (HARADA TAKAMASA [JP])
 [Y]  - MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1973, GREUBEL et al., Vol. 24, pages 103-111, "Electric Field Induced Texture Changes in Certain Nematic/Cholesteric Liquid Crystal Mixtures".
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.