Register information Patent

DE file number : 11 2017 004 715.3 (Status: pending/in force, Query started: August 23, 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	Pending/in force
21	DE file number	DAKZ	11 2017 004 715.3
86	WO file number	WAKZ	PCT/JP2017/010433
87	WO publication number	WPN	2018055803
54	Designation/title	TI	SERVOLENKUNGSVORRICHTUNG
51	IPC main class	ICM (ICMV)	B62D 6/00 (2006.01)
51	IPC secondary class(es)	ICS (ICSV)	B62D 5/04 (2006.01), B62D 5/065 (2006.01), B62D 5/083 (2006.01), B62D 5/12 (2006.01), B62D 101/00 (2006.01), B62D 113/00 (2006.01), B62D 117/00 (2006.01), B62D 119/00 (2006.01)
22	DE application date	DAT	Mar 15, 2017
85	PCT national phase entry patent	PATNAT	Mar 20, 2019
86	WO application date	WAT	Mar 15, 2017
43	Date of first publication	OT	Mar 29, 2018
	Date of publication of grant	PET	Feb 23, 2023
71/73	Applicant/owner	INH	Knorr-Bremse Commercial Vehicle Systems Japan Ltd., Sakado-shi, Saitama, JP
72	Inventor	IN	Matsumura, Tatsuo, Atsugi-shi, Kanagawa, JP
74	Representative	VTR	Grünecker Patent- und Rechtsanwälte PartG mbB, 80802 München, DE
10	Published DE documents	DEPN	Original document: DE112017004715B4 Searchable text: DE112017004715B4 Original document: DE112017004715T5 Searchable text: DE112017004715T5
	Address for service		Grünecker Patent- und Rechtsanwälte PartG mbB, 80802 München, DE
33 31 32	Foreign priority	PRC PRNA PRDA	JP 2016-182555 Sep 20, 2016
	Due date	FT FG	Mar 31, 2026 Annual fee for the 10th year Patent fees
	Patent division in charge		21
87	WO language of publication	WLANG	JP - Japanisch
57	Abstract	AB	This power steering apparatus comprising: a steering mechanism 2; a power cylinder 29 which has first and second hydraulic chambers 29a, 29b partitioned off by a piston 31 and applies steering force to the steering mechanism; a torque sensor 11 which detects the steering torque Tr of the steering mechanism; a rotary valve 30 which selectively supplies oil from a pump 9 to the first and second hydraulic chambers in response to the relative rotation of an input shaft and an output shaft; a hollow motor 10 which applies steering force to the input shaft; a control device 13 equipped with a microcomputer; and a torque instruction signal calculating unit 61 which is provided in the control device, which calculates a torque instruction signal Tm* for controlling the drive of an electric motor on the basis of the steering torque Tr and vehicle speed Vs, and which sets the torque instruction signal to 0 when the vehicle speed is a predetermined vehicle speed or more. Thus, it is possible to reduce the size of the power steering apparatus.
81	Designated WO countries	WDS	AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
	Published EP/WO documents	EPWOPN	Original document: WO2018055803A1 Searchable text: WO2018055803A1
56	Citations	CT	[Y, D] JP002008184049A (JP 2008- 184 049 A) [Y] EP000001142746A2 (EP 1 142 746 A2) [Y] JP002016150644A (JP 2016- 150 644 A) [Y] DE102012112767A1 (DE 10 2012 112 767 A1)
43	Date of first publication	EVT	Mar 29, 2018
	Number of official communications (office actions)		2
	Number of responses		2
	Date of the first transfer into DPMAregister	EREGT	Jun 13, 2019
	Date of the (most recent) update in DPMAregister	REGT	Aug 12, 2025 (Show all update days)(Hide all update days) Aug 12, 2025 Due date: changed Jul 18, 2025 St.36: changed (technical change) Aug 14, 2024 St.36: changed (technical change) Jun 13, 2019 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	Pre-registration procedure	The application is under preliminary examination	Mar 15, 2017		Details anzeigen
2	Procedure relating to PCT application	WO first publication with search report	Mar 29, 2018		Details anzeigen
3	Examination procedure	Request for examination effectively filed	Feb 18, 2019		Details anzeigen
4	Pre-registration procedure	Pre-registration procedure has been concluded	May 7, 2019		Details anzeigen
5	Pre-registration procedure	Closing PCT nationale phase entry	May 7, 2019		Details anzeigen
6	Publications	Publication of translation of PCT application	Jun 13, 2019	Jun 13, 2019	Details anzeigen
7	New applicant/owner details	New applicant/owner details	Jul 16, 2019	Aug 22, 2019	Details anzeigen
8	Examination procedure	Official communication on examination	May 17, 2021		Details anzeigen
9	Examination procedure	Reply to official communication	Nov 15, 2021		Details anzeigen
10	Examination procedure	Official communication on examination	May 25, 2022		Details anzeigen
11	Examination procedure	Reply to official communication	Nov 16, 2022		Details anzeigen
12	Examination procedure	Decision to grant patent by Examining Section/Patent Division	Nov 17, 2022		Details anzeigen
13	Publications	Patent specification	Feb 23, 2023	Feb 23, 2023	Details anzeigen
14	Examination procedure	Grant of patent has become final	Nov 24, 2023	Feb 1, 2024	Details anzeigen
15	New applicant/owner details	New applicant/owner details	Nov 29, 2023	Jan 4, 2024	Details anzeigen

View procedures Pre-registration procedure (No.: 1)
Criterion	Field	Content Close details
Type of procedure	VART	Pre-registration procedure
Legal/procedural status	VST	The application is under preliminary examination
Date of legal/procedural status	VSTT	Mar 15, 2017

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 first publication with search report
Date of legal/procedural status	VSTT	Mar 29, 2018

View procedures Examination procedure (No.: 3)
Criterion	Field	Content Close details
Type of procedure	VART	Examination procedure
Legal/procedural status	VST	Request for examination effectively filed
Date of legal/procedural status	VSTT	Feb 18, 2019
Third party request		No
Date of receipt	AEGT	Feb 18, 2019

View procedures Pre-registration procedure (No.: 4)
Criterion	Field	Content Close details
Type of procedure	VART	Pre-registration procedure
Legal/procedural status	VST	Pre-registration procedure has been concluded
Date of legal/procedural status	VSTT	May 7, 2019

View procedures Pre-registration procedure (No.: 5)
Criterion	Field	Content Close details
Type of procedure	VART	Pre-registration procedure
Legal/procedural status	VST	Closing PCT nationale phase entry
Date of legal/procedural status	VSTT	May 7, 2019

View procedures Publications (No.: 6)
INID	Criterion	Field	Content Close details
	Type of procedure	VART	Publications
	Legal/procedural status	VST	Publication of translation of PCT application
	Date of legal/procedural status	VSTT	Jun 13, 2019
	Issue number	HN	24
	Year	PJ	2019
	Publication date	VT	Jun 13, 2019
	Type of publication	PART	Documents
	Part	HT	Part 6
10	Published DE documents	DEPN	Original document: DE112017004715T5 Searchable text: DE112017004715T5

View procedures New applicant/owner details (No.: 7)
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	Jul 16, 2019
	Issue number	HN	34
	Year	PJ	2019
	Publication date	VT	Aug 22, 2019
	Type of publication	PART	Bibliographic data
	Part	HT	Part 2
71/73	Applicant/owner	INH	Knorr-Bremse Steering System Japan Ltd., Saitama, JP
71/73	Previous applicant/owner	INHF	Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP

View procedures Examination procedure (No.: 8)
Criterion	Field	Content Close details
Type of procedure	VART	Examination procedure
Legal/procedural status	VST	Official communication on examination
Date of legal/procedural status	VSTT	May 17, 2021
Date of update of the procedure	REGT	May 18, 2021

View procedures Examination procedure (No.: 9)
Criterion	Field	Content Close details
Type of procedure	VART	Examination procedure
Legal/procedural status	VST	Reply to official communication
Date of legal/procedural status	VSTT	Nov 15, 2021
Date of update of the procedure	REGT	Nov 16, 2021

View procedures Examination procedure (No.: 10)
Criterion	Field	Content Close details
Type of procedure	VART	Examination procedure
Legal/procedural status	VST	Official communication on examination
Date of legal/procedural status	VSTT	May 25, 2022
Date of update of the procedure	REGT	May 26, 2022

View procedures Examination procedure (No.: 11)
Criterion	Field	Content Close details
Type of procedure	VART	Examination procedure
Legal/procedural status	VST	Reply to official communication
Date of legal/procedural status	VSTT	Nov 16, 2022
Date of update of the procedure	REGT	Nov 18, 2022

View procedures Examination procedure (No.: 12)
Criterion	Field	Content Close details
Type of procedure	VART	Examination procedure
Legal/procedural status	VST	Decision to grant patent by Examining Section/Patent Division
Date of legal/procedural status	VSTT	Nov 17, 2022
Date of update of the procedure	REGT	Nov 18, 2022

View procedures Publications (No.: 13)
INID	Criterion	Field	Content Close details
	Type of procedure	VART	Publications
	Legal/procedural status	VST	Patent specification
	Date of legal/procedural status	VSTT	Feb 23, 2023
	Issue number	HN	8
	Year	PJ	2023
	Publication date	VT	Feb 23, 2023
	Type of publication	PART	Documents
	Part	HT	Part 3
10	Published DE documents	DEPN	Original document: DE112017004715B4 Searchable text: DE112017004715B4
	Date of update of the procedure	REGT	Feb 23, 2023

View procedures Examination procedure (No.: 14)
Criterion	Field	Content Close details
Type of procedure	VART	Examination procedure
Legal/procedural status	VST	Grant of patent has become final
Date of legal/procedural status	VSTT	Nov 24, 2023
Issue number	HN	5
Year	PJ	2024
Publication date	VT	Feb 1, 2024
Type of publication	PART	Bibliographic data
Part	HT	Part 3
Date of update of the procedure	REGT	Jan 9, 2024

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	Nov 29, 2023
	Issue number	HN	1
	Year	PJ	2024
	Publication date	VT	Jan 4, 2024
	Type of publication	PART	Bibliographic data
	Part	HT	Part 3
71/73	Applicant/owner	INH	Knorr-Bremse Commercial Vehicle Systems Japan Ltd., Sakado-shi, Saitama, JP
71/73	Previous applicant/owner	INHF	Knorr-Bremse Steering System Japan Ltd., Saitama, JP
	Date of update of the procedure	REGT	Dec 23, 2023