Register information Patent

DE file number : 603 52 695.0 (Status: not pending/lapsed, Query started: November 4, 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	603 52 695.0
96	EP file number	EAKZ	03 75 2147.3
86	WO file number	WAKZ	PCT/US03/28221
97	EP publication number	EPN	1546235
87	WO publication number	WPN	2004022630
54	Designation/title	TI	WASSERLÖSLICHE POLYMER ALKANALE
51	IPC main class	ICM (ICMV)	C08G 65/329 (2006.01)
51	IPC secondary class(es)	ICS (ICSV)	C07C 47/198 (2006.01), C07K 1/107 (2006.01)
22	DE application date	DAT	Sep 9, 2003
96	EP application date	EAT	Sep 9, 2003
86	WO application date	WAT	Sep 9, 2003
43	Date of first publication	OT	Mar 18, 2004
	Date of publication of grant	PET	Oct 20, 2021
71/73	Applicant/owner	INH	Nektar Therapeutics Al, Corp., Huntsville, Ala., US
72	Inventor	IN	KOZLOWSKI, Antoni, Huntsville, AL 35811, US
	Address for service		Weickmann & Weickmann Patent- und Rechtsanwälte PartmbB, 81679 München, DE
33 31 32	Foreign priority	PRC PRNA PRDA	US 409251 P Sep 9, 2002
33 31 32	Foreign priority	PRC PRNA PRDA	US 456580 P Mar 19, 2003
	Patent division in charge		44
97	EP language of publication	ELANG	EN - Englisch
87	WO language of publication	WLANG	EN - Englisch
84	Designated EP contracting states	EDS	AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LI, LU, MC, NL, PT, RO, SE, SI, SK, TR
81	Designated WO countries	WDS	LT, AL, LV, MK
	Published EP/WO documents	EPWOPN	Original document: EP000001546235 Searchable text: EP000001546235 Original document: EP000001546235B1 Searchable text: EP000001546235B1 Original document: WO002004022630 Searchable text: WO002004022630
43	Date of first publication	EVT	Mar 18, 2004
	Date of the first transfer into DPMAregister	EREGT	May 27, 2011
	Date of the (most recent) update in DPMAregister	REGT	Jun 27, 2024 (Show all update days)(Hide all update days) Jun 27, 2024; May 2, 2024; Apr 11, 2024; Sep 12, 2023; Oct 13, 2022; Sep 8, 2022; Jun 28, 2022; Oct 27, 2021; Oct 2, 2021; Sep 30, 2021; Jun 24, 2020; Nov 7, 2019; Oct 23, 2018; Jan 27, 2013 Historical data not available for this/these date(s) May 27, 2011 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	Mar 18, 2004		Details anzeigen
2	Procedure relating to PCT application	WO publication	Mar 18, 2004		Details anzeigen
3	Procedure relating to EP application	EPO 1st publication	Jun 29, 2005		Details anzeigen
4	Publications	Publication of a mention regarding EP 1st publication by DPMA	Aug 4, 2005	Aug 4, 2005	Details anzeigen
5	Change of classification	Change of IPC main class	Aug 27, 2005		Details anzeigen
6	Change of classification	Change of IPC main class	Oct 17, 2005		Details anzeigen
7	Procedure relating to EP application	EPO publication of mention regarding patent grant (beginning of opposition period)	Oct 20, 2021		Details anzeigen
8	Publications	Publication by DPMA of mention regarding EP patent grant	Nov 11, 2021	Nov 11, 2021	Details anzeigen
9	Procedure relating to EP application	No opposition to patent grant filed, or opposition proceedings at EPO completed without decision	Jul 21, 2022	Oct 13, 2022	Details anzeigen
10	Administrative procedure	IP right lapsed through expiry of term of protection	Sep 9, 2023		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	Mar 18, 2004

View procedures Procedure relating to PCT application (No.: 2)
Criterion	Field	Content Close details
Type of procedure	VART	Procedure relating to PCT application
Legal/procedural status	VST	WO publication
Date of legal/procedural status	VSTT	Mar 18, 2004
Date of update of the procedure	REGT	Sep 30, 2021

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 1st publication
Date of legal/procedural status	VSTT	Jun 29, 2005

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	Aug 4, 2005
Issue number	HN	31
Year	PJ	2005
Publication date	VT	Aug 4, 2005
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	Aug 27, 2005
51	IPC main class	ICM (ICMV)	C08G 65/329 (2000.01)
51	Previous IPC main class	ICMF (ICMVF)	C08G 65/329 (2000.01)

View procedures Change of classification (No.: 6)
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)	C08G 65/329 (2006.01)
51	Previous IPC main class	ICMF (ICMVF)	C08G 65/329 (2000.01)

View procedures Procedure relating to EP application (No.: 7)
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	Oct 20, 2021
Date of update of the procedure	REGT	Sep 30, 2021

View procedures Publications (No.: 8)
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	Nov 11, 2021
Issue number	HN	45
Year	PJ	2021
Publication date	VT	Nov 11, 2021
Type of publication	PART	Bibliographic data
Part	HT	Part 5
Date of update of the procedure	REGT	Oct 27, 2021

View procedures Procedure relating to EP application (No.: 9)
Criterion	Field	Content Close details
Type of procedure	VART	Procedure relating to EP application
Legal/procedural status	VST	No opposition to patent grant filed, or opposition proceedings at EPO completed without decision
Date of legal/procedural status	VSTT	Jul 21, 2022
Issue number	HN	41
Year	PJ	2022
Publication date	VT	Oct 13, 2022
Type of publication	PART	Bibliographic data
Part	HT	Part 3
Date of update of the procedure	REGT	Oct 13, 2022

View procedures Administrative procedure (No.: 10)
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	Sep 9, 2023
Date of update of the procedure	REGT	Sep 12, 2023