Register information Patent

DE file number : P 38 52 037.0 (Status: not pending/lapsed, Query started: August 2, 2025)

Please note: This English version is a non-binding translation of the German register excerpt. Only the German version of the register excerpt is legally binding.

Master data
INID	Criterion	Field	Content
	Type of IP right	SART	Patent
	Status	ST	Not pending/lapsed
21	DE file number	DAKZ	P 38 52 037.0
96	EP file number	EAKZ	88 90 6769.0
86	WO file number	WAKZ	PCT/US88/02598
97	EP publication number	EPN	394265
87	WO publication number	WPN	1989000846
54	Designation/title	TI	VERFAHREN ZUR TRENNUNG VON TEILCHEN NACH GRÖSSE.
51	IPC main class	ICM (ICMV)	A61K 9/00 (2006.01)
51	IPC secondary class(es)	ICS (ICSV)	B01D 61/00 (2006.01), B01D 37/00 (2006.01)
22	DE application date	DAT	Jul 28, 1988
96	EP application date	EAT	Jul 28, 1988
86	WO application date	WAT	Jul 28, 1988
43	Date of first publication	OT	Feb 9, 1989
	Date of publication of grant	PET	Nov 2, 1994
71/73	Applicant/owner	INH	Elan Pharmaceuticals,Inc.(n.d.Ges.d.Staates Delaware), San Francisco, Calif., US
72	Inventor	IN	LENK, Robert, P., Lambertville, NJ 08530, US; DURNING, Anthony, G., Yardley, PA 19067, US; KLIMCHAK, Robert, J., Flemington, NJ 08822, US; PORTNOFF, Joel, Richboro, PA 18954, US; TOMSHO, Michelle, L., Levittown, PA 19054, US
74	Representative	VTR	GILLE HRABAL Partnerschaftsgesellschaft mbB Patentanwälte, 40593 Düsseldorf, DE
10	Published DE documents	DEPN	Original document: DE000003852037T2 Searchable text: DE000003852037T2
	Address for service		GILLE HRABAL Partnerschaftsgesellschaft mbB Patentanwälte, 40571 Düsseldorf, DE
33 31 32	Foreign priority	PRC PRNA PRDA	US 79309 Jul 29, 1987
33 31 32	Foreign priority	PRC PRNA PRDA	US 164580 Mar 7, 1988
	Patent division in charge		44
97	EP language of publication	ELANG	EN - Englisch
84	Designated EP contracting states	EDS	AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE
	Published EP/WO documents	EPWOPN	Original document: EP000000394265 Searchable text: EP000000394265 Original document: EP000000394265B1 Searchable text: EP000000394265B1 Original document: WO001989000846 Searchable text: WO001989000846
43	Date of first publication	EVT	Feb 9, 1989
	Date of the first transfer into DPMAregister	EREGT	Sep 26, 2012
	Date of the (most recent) update in DPMAregister	REGT	Apr 30, 2022 (Show all update days)(Hide all update days) Sep 26, 2012 Date of the first transfer into DPMAregister

Procedural data
No.	Kind of procedure	Legal status	Date of legal/procedural status	Publication date	Alle Details anzeigen
1	Procedure relating to PCT application	WO first publication without search report	Feb 9, 1989		Details anzeigen
2	Procedure relating to EP application	EPO 1st publication	Oct 31, 1990		Details anzeigen
3	Procedure relating to EP application	EPO publication of search report	Oct 31, 1990		Details anzeigen
4	Publications	Publication of a mention regarding EP 1st publication by DPMA	Dec 6, 1990	Dec 6, 1990	Details anzeigen
5	Change of classification	Change of IPC main class	Oct 25, 1994		Details anzeigen
6	Procedure relating to EP application	EPO publication of mention regarding patent grant (beginning of opposition period)	Nov 2, 1994		Details anzeigen
7	Publications	Publication by DPMA of mention regarding EP patent grant	Dec 8, 1994	Dec 8, 1994	Details anzeigen
8	Publications	Translation of EP patent specification	Mar 23, 1995	Mar 23, 1995	Details anzeigen
9	Opposition procedure	Opposition to patent filed	Aug 1, 1995	Nov 2, 1995	Details anzeigen
10	Opposition procedure	Patent maintained full by EPO	Sep 14, 1998		Details anzeigen
11	Opposition procedure	Decision by EPO to maintain patent in full has become final	Sep 14, 1998	Jul 18, 2019	Details anzeigen
12	Change of classification	Change of IPC main class	Oct 9, 1999		Details anzeigen
13	Change of classification	Change of IPC main class	Oct 17, 2005		Details anzeigen
14	Administrative procedure	IP right lapsed through expiry of term of protection	Jul 28, 2008		Details anzeigen
15	New applicant/owner details	New applicant/owner details	Aug 8, 2008	Oct 16, 2008	Details anzeigen

View procedures Procedure relating to PCT application (No.: 1)
Criterion	Field	Content Close details
Type of procedure	VART	Procedure relating to PCT application
Legal/procedural status	VST	WO first publication without search report
Date of legal/procedural status	VSTT	Feb 9, 1989

View procedures Procedure relating to EP application (No.: 2)
Criterion	Field	Content Close details
Type of procedure	VART	Procedure relating to EP application
Legal/procedural status	VST	EPO 1st publication
Date of legal/procedural status	VSTT	Oct 31, 1990

View procedures Procedure relating to EP application (No.: 3)
Criterion	Field	Content Close details
Type of procedure	VART	Procedure relating to EP application
Legal/procedural status	VST	EPO publication of search report
Date of legal/procedural status	VSTT	Oct 31, 1990

View procedures Publications (No.: 4)
Criterion	Field	Content Close details
Type of procedure	VART	Publications
Legal/procedural status	VST	Publication of a mention regarding EP 1st publication by DPMA
Date of legal/procedural status	VSTT	Dec 6, 1990
Issue number	HN	49
Year	PJ	1990
Publication date	VT	Dec 6, 1990
Type of publication	PART	Bibliographic data

View procedures Change of classification (No.: 5)
INID	Criterion	Field	Content Close details
	Type of procedure	VART	Change of classification
	Legal/procedural status	VST	Change of IPC main class
	Date of legal/procedural status	VSTT	Oct 25, 1994
51	IPC main class	ICM (ICMV)	A61K 9/00 (1995.01)
51	Previous IPC main class	ICMF (ICMVF)	A61K 9/00 (1990.01)

View procedures Procedure relating to EP application (No.: 6)
Criterion	Field	Content Close details
Type of procedure	VART	Procedure relating to EP application
Legal/procedural status	VST	EPO publication of mention regarding patent grant (beginning of opposition period)
Date of legal/procedural status	VSTT	Nov 2, 1994

View procedures Publications (No.: 7)
Criterion	Field	Content Close details
Type of procedure	VART	Publications
Legal/procedural status	VST	Publication by DPMA of mention regarding EP patent grant
Date of legal/procedural status	VSTT	Dec 8, 1994
Issue number	HN	49
Year	PJ	1994
Publication date	VT	Dec 8, 1994
Type of publication	PART	Bibliographic data
Part	HT	Part 5

View procedures Publications (No.: 8)
INID	Criterion	Field	Content Close details
	Type of procedure	VART	Publications
	Legal/procedural status	VST	Translation of EP patent specification
	Date of legal/procedural status	VSTT	Mar 23, 1995
	Issue number	HN	12
	Year	PJ	1995
	Publication date	VT	Mar 23, 1995
	Type of publication	PART	Documents
10	Published DE documents	DEPN	Original document: DE000003852037T2 Searchable text: DE000003852037T2

View procedures Opposition procedure (No.: 9)
Criterion	Field	Content Close details
Type of procedure	VART	Opposition procedure
Legal/procedural status	VST	Opposition to patent filed
Date of legal/procedural status	VSTT	Aug 1, 1995
Issue number	HN	44
Year	PJ	1995
Publication date	VT	Nov 2, 1995
Type of publication	PART	Bibliographic data
Part	HT	Part 3

View procedures Opposition procedure (No.: 10)
Criterion	Field	Content Close details
Type of procedure	VART	Opposition procedure
Legal/procedural status	VST	Patent maintained full by EPO
Date of legal/procedural status	VSTT	Sep 14, 1998
Date of update of the procedure	REGT	Apr 30, 2022

View procedures Opposition procedure (No.: 11)
Criterion	Field	Content Close details
Type of procedure	VART	Opposition procedure
Legal/procedural status	VST	Decision by EPO to maintain patent in full has become final
Date of legal/procedural status	VSTT	Sep 14, 1998
Issue number	HN	29
Year	PJ	2019
Publication date	VT	Jul 18, 2019
Type of publication	PART	Bibliographic data
Part	HT	Part 3
Date of update of the procedure	REGT	Apr 30, 2022

View procedures Change of classification (No.: 12)
INID	Criterion	Field	Content Close details
	Type of procedure	VART	Change of classification
	Legal/procedural status	VST	Change of IPC main class
	Date of legal/procedural status	VSTT	Oct 9, 1999
51	IPC main class	ICM (ICMV)	A61K 9/00 (2000.01)
51	Previous IPC main class	ICMF (ICMVF)	A61K 9/00 (1995.01)

View procedures Change of classification (No.: 13)
INID	Criterion	Field	Content Close details
	Type of procedure	VART	Change of classification
	Legal/procedural status	VST	Change of IPC main class
	Date of legal/procedural status	VSTT	Oct 17, 2005
51	IPC main class	ICM (ICMV)	A61K 9/00 (2006.01)
51	Previous IPC main class	ICMF (ICMVF)	A61K 9/00 (2000.01)

View procedures Administrative procedure (No.: 14)
Criterion	Field	Content Close details
Type of procedure	VART	Administrative procedure
Legal/procedural status	VST	IP right lapsed through expiry of term of protection
Date of legal/procedural status	VSTT	Jul 28, 2008

View procedures New applicant/owner details (No.: 15)
INID	Criterion	Field	Content Close details
	Type of procedure	VART	New applicant/owner details
	Legal/procedural status	VST	New applicant/owner details
	Date of legal/procedural status	VSTT	Aug 8, 2008
	Issue number	HN	42
	Year	PJ	2008
	Publication date	VT	Oct 16, 2008
	Type of publication	PART	Bibliographic data
	Part	HT	Part 3
71/73	Applicant/owner	INH	Elan Pharmaceuticals,Inc.(n.d.Ges.d.Staates Delaware), San Francisco, Calif., US
71/73	Previous applicant/owner	INHF	The Liposome Co., Inc., Princeton, N.J., US