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Extract from the Register of European Patents

EP About this file: EP2297976

EP2297976 - PIEZOELECTRIC MEMS MICROPHONE [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  06.08.2021
Database last updated on 18.11.2024
FormerThe patent has been granted
Status updated on  28.08.2020
FormerGrant of patent is intended
Status updated on  28.04.2020
FormerExamination is in progress
Status updated on  08.06.2018
Most recent event   Tooltip06.09.2024Lapse of the patent in a contracting state
New state(s): MT		published on 09.10.2024  [2024/41]
Applicant(s)For all designated states
The Regents of the University of Michigan
U-M Office of Technology Transfer 1600 Huron Parkway, 2nd Floor
Ann Arbor, MI 48104-2590 / US
[2011/12]
Inventor(s)01 / GROSH, Karl
2026 G.G. Brown Building
2350 Hayward Street
Ann Arbor, MI 48109-2125 / US
02 / LITTRELL, Robert, J.
239 W Channel Rd
Santa Monica CA 90402-1105 / US
 [2020/40]
Former [2011/17]01 / GROSH, Karl
2026 G.G. Brown Building 2350 Hayward Street
Ann Arbor, MI 48109-2125 / US
02 / LITTRELL, Robert, J.
239 W Channel Rd
Santa Monica CA 90402-1105 / US
Former [2011/12]01 / GROSH, Karl
2026 G.G. Brown Building 2350 Hayward Street
Ann Arbor, MI 48109-2125 / US
02 / LITTRELL, Robert, J.
1322 S Forest Ave Apt 2
Ann Arbor MI 48104 / US
Representative(s)HGF
HGF Limited
1 City Walk
Leeds LS11 9DX / GB
[N/P]
Former [2020/40]HGF
1 City Walk
Leeds LS11 9DX / GB
Former [2014/07]Barker, Rosemary Anne, et al
Harrison Goddard Foote LLP
4th Floor, Merchant Exchange
17-19 Whitworth Street West
Manchester M1 5WG / GB
Former [2011/12]Harrison Goddard Foote
4th Floor Merchant Exchange 17-19 Whitworth Street West Manchester
M1 5WG / GB
Application number, filing date09774338.930.06.2009
[2011/12]
WO2009US49248
Priority number, dateUS20080076928P30.06.2008         Original published format: US 76928 P
[2011/12]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report
No.:WO2010002887
Date:07.01.2010
Language:EN
[2010/01]
Type: A2 Application without search report 
No.:EP2297976
Date:23.03.2011
Language:EN
The application published by WIPO in one of the EPO official languages on 07.01.2010 takes the place of the publication of the European patent application.
[2011/12]
Type: B1 Patent specification 
No.:EP2297976
Date:30.09.2020
Language:EN
[2020/40]
Search report(s)International search report - published on:KR08.04.2010
(Supplementary) European search report - dispatched on:EP03.02.2014
ClassificationIPC:H04R17/00, H04R17/02
[2011/12]
CPC:
H04R17/10 (EP); H04R17/02 (EP,KR,US); H10N30/50 (US);
B81B3/0021 (US); B81C1/0015 (US); B81C1/00158 (US);
H04R17/00 (EP,US); H10N30/05 (US); H10N30/302 (US);
H10N30/306 (US); B81B2201/0257 (US); H04R2201/003 (EP,US) (-)
Designated contracting statesAT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   SE,   SI,   SK,   TR [2020/40]
Former [2011/12]AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  LV,  MC,  MK,  MT,  NL,  NO,  PL,  PT,  RO,  SE,  SI,  SK,  TR 
TitleGerman:PIEZOELEKTRISCHES MEMS-MIKROFON[2011/12]
English:PIEZOELECTRIC MEMS MICROPHONE[2011/12]
French:MICROPHONE PIÉZOÉLECTRIQUE EN TECHNOLOGIE MEMS[2011/12]
Entry into regional phase23.12.2010National basic fee paid 
23.12.2010Search fee paid 
23.12.2010Designation fee(s) paid 
23.12.2010Examination fee paid 
Examination procedure23.12.2010Examination requested  [2011/12]
01.09.2014Amendment by applicant (claims and/or description)
12.06.2018Despatch of a communication from the examining division (Time limit: M06)
21.12.2018Reply to a communication from the examining division
30.03.2020Cancellation of oral proceeding that was planned for 05.05.2020
29.04.2020Communication of intention to grant the patent
05.05.2020Date of oral proceedings (cancelled)
19.08.2020Fee for grant paid
19.08.2020Fee for publishing/printing paid
19.08.2020Receipt of the translation of the claim(s)
Divisional application(s)EP20199098.3  / EP3796671
The date of the Examining Division's first communication in respect of the earliest application for which a communication has been issued is  12.06.2018
Opposition(s)01.07.2021No opposition filed within time limit [2021/36]
Fees paidRenewal fee
27.06.2011Renewal fee patent year 03
26.06.2012Renewal fee patent year 04
27.06.2013Renewal fee patent year 05
30.06.2014Renewal fee patent year 06
29.06.2015Renewal fee patent year 07
27.06.2016Renewal fee patent year 08
27.06.2017Renewal fee patent year 09
27.06.2018Renewal fee patent year 10
27.06.2019Renewal fee patent year 11
22.06.2020Renewal fee patent year 12
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  TooltipHU30.06.2009
AT30.09.2020
CY30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
IT30.09.2020
LT30.09.2020
LV30.09.2020
MC30.09.2020
MK30.09.2020
MT30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SI30.09.2020
SK30.09.2020
TR30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
IS30.01.2021
PT01.02.2021
BE30.06.2021
CH30.06.2021
FR30.06.2021
GB30.06.2021
IE30.06.2021
LI30.06.2021
LU30.06.2021
[2024/41]
Former [2024/29]HU30.06.2009
AT30.09.2020
CY30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
IT30.09.2020
LT30.09.2020
LV30.09.2020
MC30.09.2020
MK30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SI30.09.2020
SK30.09.2020
TR30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
IS30.01.2021
PT01.02.2021
BE30.06.2021
CH30.06.2021
FR30.06.2021
GB30.06.2021
IE30.06.2021
LI30.06.2021
LU30.06.2021
Former [2024/22]HU30.06.2009
AT30.09.2020
CY30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
IT30.09.2020
LT30.09.2020
LV30.09.2020
MC30.09.2020
MK30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SI30.09.2020
SK30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
IS30.01.2021
PT01.02.2021
BE30.06.2021
CH30.06.2021
FR30.06.2021
GB30.06.2021
IE30.06.2021
LI30.06.2021
LU30.06.2021
Former [2023/29]HU30.06.2009
AT30.09.2020
CY30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
IT30.09.2020
LT30.09.2020
LV30.09.2020
MC30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SI30.09.2020
SK30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
IS30.01.2021
PT01.02.2021
BE30.06.2021
CH30.06.2021
FR30.06.2021
GB30.06.2021
IE30.06.2021
LI30.06.2021
LU30.06.2021
Former [2023/24]AT30.09.2020
CY30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
IT30.09.2020
LT30.09.2020
LV30.09.2020
MC30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SI30.09.2020
SK30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
IS30.01.2021
PT01.02.2021
BE30.06.2021
CH30.06.2021
FR30.06.2021
GB30.06.2021
IE30.06.2021
LI30.06.2021
LU30.06.2021
Former [2022/34]AT30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
IT30.09.2020
LT30.09.2020
LV30.09.2020
MC30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SI30.09.2020
SK30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
IS30.01.2021
PT01.02.2021
BE30.06.2021
CH30.06.2021
FR30.06.2021
GB30.06.2021
IE30.06.2021
LI30.06.2021
LU30.06.2021
Former [2022/23]AT30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
IT30.09.2020
LT30.09.2020
LV30.09.2020
MC30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SI30.09.2020
SK30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
IS30.01.2021
PT01.02.2021
CH30.06.2021
FR30.06.2021
GB30.06.2021
IE30.06.2021
LI30.06.2021
LU30.06.2021
Former [2022/22]AT30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
IT30.09.2020
LT30.09.2020
LV30.09.2020
MC30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SI30.09.2020
SK30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
PT01.02.2021
CH30.06.2021
GB30.06.2021
IE30.06.2021
LI30.06.2021
LU30.06.2021
Former [2022/21]AT30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
IT30.09.2020
LT30.09.2020
LV30.09.2020
MC30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SI30.09.2020
SK30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
PT01.02.2021
CH30.06.2021
IE30.06.2021
LI30.06.2021
LU30.06.2021
Former [2022/18]AT30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
IT30.09.2020
LT30.09.2020
LV30.09.2020
MC30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SI30.09.2020
SK30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
PT01.02.2021
LU30.06.2021
Former [2022/10]AT30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
IT30.09.2020
LT30.09.2020
LV30.09.2020
MC30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SI30.09.2020
SK30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
PT01.02.2021
Former [2022/08]AT30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
IT30.09.2020
LT30.09.2020
LV30.09.2020
MC30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SI30.09.2020
SK30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
IS30.01.2021
PT01.02.2021
Former [2021/50]AT30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
IT30.09.2020
LT30.09.2020
LV30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SI30.09.2020
SK30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
IS30.01.2021
PT01.02.2021
Former [2021/48]AT30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
IT30.09.2020
LT30.09.2020
LV30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SK30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
IS30.01.2021
PT01.02.2021
Former [2021/37]AT30.09.2020
CZ30.09.2020
DK30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
LT30.09.2020
LV30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SK30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
IS30.01.2021
PT01.02.2021
Former [2021/28]AT30.09.2020
CZ30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
LT30.09.2020
LV30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
SK30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
IS30.01.2021
PT01.02.2021
Former [2021/25]AT30.09.2020
CZ30.09.2020
EE30.09.2020
ES30.09.2020
FI30.09.2020
HR30.09.2020
LT30.09.2020
LV30.09.2020
NL30.09.2020
PL30.09.2020
RO30.09.2020
SE30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
IS30.01.2021
PT01.02.2021
Former [2021/24]AT30.09.2020
CZ30.09.2020
EE30.09.2020
FI30.09.2020
HR30.09.2020
LT30.09.2020
LV30.09.2020
NL30.09.2020
RO30.09.2020
SE30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
PT01.02.2021
Former [2021/22]CZ30.09.2020
EE30.09.2020
FI30.09.2020
HR30.09.2020
LT30.09.2020
LV30.09.2020
NL30.09.2020
RO30.09.2020
SE30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
PT01.02.2021
Former [2021/21]FI30.09.2020
HR30.09.2020
LT30.09.2020
LV30.09.2020
NL30.09.2020
SE30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
PT01.02.2021
Former [2021/20]FI30.09.2020
HR30.09.2020
LT30.09.2020
LV30.09.2020
SE30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
Former [2021/10]FI30.09.2020
HR30.09.2020
LV30.09.2020
SE30.09.2020
BG30.12.2020
NO30.12.2020
GR31.12.2020
Former [2021/08]FI30.09.2020
SE30.09.2020
BG30.12.2020
NO30.12.2020
Former [2021/07]FI30.09.2020
NO30.12.2020
Cited inInternational search[Y]KR20030075906  (SAMSUNG ELECTRONICS CO LTD [KR]);
 [A]US6857501  (HAN CHEOL-HYUN [US], et al);
 [A]US2005200242  (DEGERTEKIN F L [US]);
 [A]US2007089516  (KHURI-YAKUB BUTRUS T [US], et al);
 [A]KR20070098735  (TOSHIBA KK [JP]);
 [X]US2007287233  (ZHAN CHANGQING [US], et al)
by applicantUS6857501
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.