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Extract from the Register of European Patents

EP About this file: EP0734009

EP0734009 - Circuit for generating an adjustable output voltage higher than the input voltage, especially for providing contrast voltages in a liquid crystal display [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  05.12.2008
Database last updated on 15.05.2024
Most recent event   Tooltip05.12.2008Revocation of patentpublished on 07.01.2009  [2009/02]
Applicant(s)For all designated states
SIEMENS AKTIENGESELLSCHAFT
Werner-von-Siemens-Str. 1
DE-80333 München / DE
[N/P]
Former [1996/39]For all designated states
SIEMENS AKTIENGESELLSCHAFT
Wittelsbacherplatz 2
80333 München / DE
Inventor(s)01 / Rieger, Gottfried, Dipl.-Ing (FH)
Orchideemstrasse 2A
90765 Fürth / DE
[1996/39]
Application number, filing date96104185.215.03.1996
[1996/39]
Priority number, dateDE199511004920.03.1995         Original published format: DE 19510049
[1996/39]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0734009
Date:25.09.1996
Language:DE
[1996/39]
Type: A3 Search report 
No.:EP0734009
Date:01.04.1998
[1998/14]
Type: B1 Patent specification 
No.:EP0734009
Date:07.07.2004
Language:DE
[2004/28]
Search report(s)(Supplementary) European search report - dispatched on:EP12.02.1998
ClassificationIPC:G09G3/36, H02M3/156
[1998/14]
CPC:
G09G3/36 (EP); H02M3/156 (EP); G09G2320/041 (EP);
G09G2330/02 (EP); G09G2330/021 (EP); H02M1/0025 (EP);
H02M1/009 (EP) (-)
Former IPC [1996/39]G09G3/36
Designated contracting statesDE,   FR,   GB,   IT [1996/39]
TitleGerman:Schaltung zur Erzeugung einer einstellbaren Ausgangsgleichspannung mit einem über einer Eingangsspannung liegenden Wert, insbesondere zur Verwendung bei der Bereitstellung von Kontrastspannungen für Flüssigkristallanzeigen[1996/39]
English:Circuit for generating an adjustable output voltage higher than the input voltage, especially for providing contrast voltages in a liquid crystal display[1996/39]
French:Circuit pour la génération d'une tension de sortie réglable plus grande que la tension d'entrée, notamment pour la fourniture de tension de contraste pour des dispositifs d'affichage à cristaux liquides[1996/39]
Examination procedure05.05.1998Examination requested  [1998/27]
17.09.2002Despatch of a communication from the examining division (Time limit: M06)
11.02.2003Reply to a communication from the examining division
02.04.2003Despatch of a communication from the examining division (Time limit: M04)
29.04.2003Reply to a communication from the examining division
22.01.2004Communication of intention to grant the patent
02.02.2004Fee for grant paid
02.02.2004Fee for publishing/printing paid
Opposition(s)Opponent(s)01  06.04.2005  09.05.2005  ADMISSIBLE
IGR GmbH & Co. KG.
Bahnstrasse 62
40210 Düsseldorf / DE
Opponent's representative
Kinnstätter, Klaus
Maryniok GbR
Patent- und Rechtsanwaltssozietät
Leibnizstrasse 6
95447 Bayreuth / DE
 [N/P]
Former [2007/17]
Opponent(s)01  06.04.2005  09.05.2005  ADMISSIBLE
IGR GmbH & Co. KG.
Bahnstrasse 62
40210 Düsseldorf / DE
Opponent's representative
Kinnstätter, Klaus
Maryniok & Eichstädt Patentanwälte GbR Kuhbergstrasse 23
96317 Kronach / DE
Former [2005/26]
Opponent(s)01  06.04.2005  09.05.2005  ADMISSIBLE
Interessengemeinschaft für Rundfunkschutzrechte E.V.
Bahnstrasse 62
D-40210 Düsseldorf / DE
Opponent's representative
Kinnstätter, Klaus
Maryniok & Eichstädt Patentanwälte GbR Kuhbergstrasse 23
96317 Kronach / DE
Former [2005/23]
Opponent(s)01  06.04.2005  09.05.2005  ADMISSIBLE
Interessengemeinschaft für Rundfunkschutzrechte E.V.
Bahnstrasse 62
D-40210 Düsseldorf / DE
Opponent's representative
Kinnstätter, Klaus
Maryniok & Eichstädt Patentanwälte GbR Kuhbergstrasse 23
96317 Kronach / DE
Former [2005/22]
Opponent(s)01  06.04.2005   
Interessengemeinschaft für Rundfunkschutzrechte E.V.
Bahnstrasse 62
D-40210 Düsseldorf / DE
Opponent's representative
Kinnstätter, Klaus
Maryniok & Eichstädt Patentanwälte GbR Kuhbergstrasse 23
96317 Kronach / DE
21.04.2005No. 01: Notification indicating deficiencies in the notice of opposition
29.04.2005No. 01: Reply to notification indicating deficiencies in the notice of opposition
18.05.2005Invitation to proprietor to file observations on the notice of opposition
31.08.2005Reply of patent proprietor to notice(s) of opposition
20.03.2006Despatch of communication that the patent will be revoked
14.11.2008Legal effect of revocation of patent [2009/02]
Appeal following opposition19.05.2006Appeal received No.  T0827/06
08.06.2006Statement of grounds filed
14.11.2008Result of appeal procedure: appeal of the proprietor withdrawn
Fees paidRenewal fee
20.03.1998Renewal fee patent year 03
19.03.1999Renewal fee patent year 04
13.03.2000Renewal fee patent year 05
19.03.2001Renewal fee patent year 06
18.03.2002Renewal fee patent year 07
17.03.2003Renewal fee patent year 08
22.03.2004Renewal fee patent year 09
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Documents cited:Search[A]EP0593257  (NEMIC LAMBDA KK [JP]) [A] 1 * abstract * * column 2, line 8 - line 39 * * column 2, line 54 - column 3, line 45 * * figure 1 *;
 [A]DE4021385  (PHILIPS PATENTVERWALTUNG [DE]) [A] 1,2 * abstract * * column 4, line 27 - column 5, line 5 * * figures 1,3 *;
 [A]EP0262739  (PHILIPS PATENTVERWALTUNG [DE], et al) [A] 1,3 * abstract * * column 2, line 39 - column 3, line 55 * * claim 1 * * figure 1 *;
 [A]US4687956  (ITOH HIROSHI [JP], et al) [A] 1,5 * abstract * * column 2, line 11 - line 39 * * column 3, line 32 - column 4, line 36 * * column 6, line 13 - line 37 * * figures 2,3 *;
 [A]  - "DIGITAL CONTRAST AND BRIGHTNESS CONTROLS FOR A LIQUID CRYSTAL DISPLAY", IBM TECHNICAL DISCLOSURE BULLETIN, (19931001), vol. 36, no. 10, pages 395 - 397, XP000412306 [A] 8,9 * Ganze Dokument *
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.