Deutsch English Français

Contact

EP0522361

European procedure

Quick help

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...

News flashes

Italy joins the Federated Register

Click here for more information on the Federated Register.

2025-06-12

More...

Extract from the Register of European Patents

EP About this file: EP0522361

EP0522361 - Power saving sensing circuits for dynamic random access memory [Right-click to bookmark this link]
Status	No opposition filed within time limit Status updated on 09.01.1998 Database last updated on 09.04.2026
Most recent event Tooltip	17.02.2006	Change - lapse in a contracting state Updated state(s): FR	published on 05.04.2006 [2006/14]
Applicant(s)	For all designated states International Business Machines Corporation New Orchard Road Armonk, NY 10504 / US
	[N/P]
Former [1993/02]	For all designated states International Business Machines Corporation Old Orchard Road Armonk, N.Y. 10504 / US
Inventor(s)	01 / Dhong, Sang H. 407 MacGregor Drive Mahopac, NY 10541 / US
	02 / Terman, Lewis M. RR1 Box 178, Twin Lakes Road South Salem, NY 10590 / US
	[1993/02]
Representative(s)	Teufel, Fritz, et al IBM Deutschland Management & Business Support GmbH Patentwesen u. Urheberrecht 71137 Ehningen / DE
	[N/P]
Former [1997/24]	Teufel, Fritz, Dipl.-Phys., et al IBM Deutschland Informationssysteme GmbH, Patentwesen und Urheberrecht 70548 Stuttgart / DE
Former [1996/17]	Lindner-Vogt, Karin, Dipl.-Phys., et al IBM Deutschland, Informationssysteme GmbH, Patentwesen und Urheberrecht D-70548 Stuttgart / DE
Former [1994/29]	Harrison, Robert John IBM Deutschland Informationssysteme GmbH, Patentwesen und Urheberrecht D-70548 Stuttgart / DE
Former [1993/39]	Mönig, Anton, Dipl.-Ing. IBM Deutschland Informationssysteme GmbH, Patentwesen und Urheberrecht D-70548 Stuttgart / DE
Former [1993/19]	Klocke, Peter, Dipl.-Ing. IBM Deutschland Informationssysteme GmbH Patentwesen und Urheberrecht Pascalstrasse 100 D-70569 Stuttgart / DE
Former [1993/13]	Klocke, Peter, Dipl.-Ing. Patentanwälte Dipl.-Ing. Elmar Ott, Dipl.-Ing. Peter Klocke, Dipl.-Phys. Hans-J. Neubauer, Kappelstrasse 8 D-72160 Horb / DE
Former [1993/02]	Gaugel, Heinz, Dipl.-Ing. IBM Deutschland GmbH, Patentwesen und Urheberrecht, Schönaicher Strasse 220 W-7030 Böblingen / DE
Application number, filing date	92110725.6	25.06.1992
	[1993/02]
Priority number, date	US19910729120	12.07.1991 Original published format: US 729120
	[1993/02]
Filing language	EN
Procedural language	EN
Publication	Type:	A2 Application without search report
	No.:	EP0522361
	Date:	13.01.1993
	Language:	EN
	[1993/02]
	Type:	A3 Search report
	No.:	EP0522361
	Date:	16.02.1994
	Language:	EN
	[1994/07]
	Type:	B1 Patent specification
	No.:	EP0522361
	Date:	05.03.1997
	Language:	EN
	[1997/10]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	30.12.1993
Classification	IPC:	G11C11/409	[1993/02]
	CPC:	G11C11/4091 (EP,US)
Designated contracting states	DE, FR, GB [1993/02]
Title	German:	Energiesparschaltung für Abfühlschaltungen für DRAM	[1993/02]
	English:	Power saving sensing circuits for dynamic random access memory	[1993/02]
	French:	Circuits de détection pour DRAM, économisant de l'énergie	[1993/02]
Examination procedure	19.05.1993	Examination requested [1993/28]
	11.01.1994	New documents discovered [1994/09]
	25.07.1995	Despatch of a communication from the examining division (Time limit: M04)
	15.11.1995	Reply to a communication from the examining division
	13.05.1996	Despatch of communication of intention to grant (Approval: Yes)
	04.09.1996	Communication of intention to grant the patent
	13.11.1996	Fee for grant paid
	13.11.1996	Fee for publishing/printing paid
Opposition(s)	06.12.1997	No opposition filed within time limit [1998/09]
Fees paid	Renewal fee
	27.06.1994	Renewal fee patent year 03
	12.06.1995	Renewal fee patent year 04
	26.06.1996	Renewal fee patent year 05
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 Tooltip	FR	05.03.1997
	GB	25.06.1997
	[2006/14]
Former [1998/30]	GB	25.06.1997
	FR	01.08.1997
Former [1998/03]	FR	01.08.1997

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.