EP2242117A3

Group III nitride based quantum well light emitting device structures

Abstract

A light emitting diode comprises: an n-type Group III nitride layer (12); a Group III nitride based superlattice (16) on the n-type Group III nitride layer, the superlattice having at least two periods of alternating layers; a Group III nitride based light emitting diode active region (18) on the superlattice opposite the n-type Group III nitride layer, wherein the light emitting diode active region provides photon emission due to carrier recombination therein; and a Group III nitride capping layer (22) including aluminum (Al) on the light emitting diode active region, the Group III nitride capping layer having a higher Al composition in a region distal from the light emitting diode active region than is present in a region proximate the light emitting diode active region.

EP2242117A3, drawing sheet 1 — Sheet 1 of 1

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Projected expiry passed 24 June 2025, 1.3 years ago.

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Citations
Document	Relation	Office	Category	Cited during	Relevant claims
EP1221723A2	Cites	European Patent Office (EPO)	I	Search report	1-14
US2003006418A1	Cites	United States of America	X	Search report	1-14
US6153894A	Cites	United States of America	X	Search report	1-14

131 members in 12 offices

This recordMember, by publication datePriority claim2 more offices are in the list below

Priority claims9

Priority claims
Document	Office	Kind	Date
899791	United States of America	–	2004-07-27
89979104	United States of America	A	2004-07-27
89979104	United States of America	A	2004-07-27
05784977	European Patent Office (EPO)	A	2005-06-24
05784977	European Patent Office (EPO)	A	2005-06-24
05784977	–	–	–
899791	–	–	–
EP20050784977	–	–	–
US20040899791	–	–	–

Members131

Family members, oldest first
Document	Office	Kind
US2002093020A1	United States of America	A1	2002-07-18
CA2434675A1	Canada	A1	2002-08-15
WO02063699A2	World Intellectual Property Organization (WIPO)	A2	2002-08-15
WO02063699A3	World Intellectual Property Organization (WIPO)	A3	2002-09-26
CA2441310A1	Canada	A1	2002-12-05
WO02097904A2	World Intellectual Property Organization (WIPO)	A2	2002-12-05
AU2002257318A1	Australia	A1	2002-12-09
US2002195606A1	United States of America	A1	2002-12-26
US2003006418A1	United States of America	A1	2003-01-09
WO02097904A3	World Intellectual Property Organization (WIPO)	A3	2003-02-20
TW536839B	Taiwan Province of China	B	2003-06-11
TW544952B	Taiwan Province of China	B	2003-08-01
EP1352433A2	European Patent Office (EPO)	A2	2003-10-15
KR20030097817A	Republic of Korea	A	2003-12-31
CA2487149A1	Canada	A1	2004-01-22
WO2004008552A2	World Intellectual Property Organization (WIPO)	A2	2004-01-22
AU2003276833A1	Australia	A1	2004-02-02
KR20040014446A	Republic of Korea	A	2004-02-14
EP1390990A2	European Patent Office (EPO)	A2	2004-02-25
EP1401027A1	European Patent Office (EPO)	A1	2004-03-24
TW200408147A	Taiwan Province of China	A	2004-05-16
CN1503991A	China	A	2004-06-09
JP2004521495A	Japan	A	2004-07-15
US6800876B2	United States of America	B2	2004-10-05
WO2004008552A3	World Intellectual Property Organization (WIPO)	A3	2004-10-21
CN1552104A	China	A	2004-12-01
KR20050010017A	Republic of Korea	A	2005-01-26
TWI228322B	Taiwan Province of China	B	2005-02-21
US2005040426A1	United States of America	A1	2005-02-24
US2005045895A1	United States of America	A1	2005-03-03
JP2005507155A	Japan	A	2005-03-10
EP1514313A2	European Patent Office (EPO)	A2	2005-03-16
US2005056824A1	United States of America	A1	2005-03-17
US6906352B2	United States of America	B2	2005-06-14
CN1666350A	China	A	2005-09-07
JP2005528809A	Japan	A	2005-09-22
US6958497B2	United States of America	B2	2005-10-25
CA2567739A1	Canada	A1	2006-03-02
WO2006023060A2	World Intellectual Property Organization (WIPO)	A2	2006-03-02
WO2006023060A3	World Intellectual Property Organization (WIPO)	A3	2006-04-13
US7071490B2	United States of America	B2	2006-07-04
TW200625679A	Taiwan Province of China	A	2006-07-16
CN1274035C	China	C	2006-09-06
US2006233211A1	United States of America	A1	2006-10-19
MY128599A	Malaysia	A	2007-02-28
EP1771894A2	European Patent Office (EPO)	A2	2007-04-11
KR20070042983A	Republic of Korea	A	2007-04-24
MY129574A	Malaysia	A	2007-04-30
CN101006590A	China	A	2007-07-25
CN100350637C	China	C	2007-11-21
US7312474B2	United States of America	B2	2007-12-25
US2008038858A1	United States of America	A1	2008-02-14
JP2008508720A	Japan	A	2008-03-21
EP1390990B1	European Patent Office (EPO)	B1	2008-10-22
KR20080098693A	Republic of Korea	A	2008-11-11
AT412253T	Austria	T	2008-11-15
ATE412253T1	Austria	T1	2008-11-15
DE60229514D1	Germany	D1	2008-12-04
MY137396A	Malaysia	A	2009-01-30
CN100468790C	China	C	2009-03-11
EP1401027B1	European Patent Office (EPO)	B1	2009-04-08
AT428189T	Austria	T	2009-04-15
ATE428189T1	Austria	T1	2009-04-15
DE60231877D1	Germany	D1	2009-05-20
KR100899133B1	Republic of Korea	B1	2009-05-27
EP2075855A2	European Patent Office (EPO)	A2	2009-07-01
EP2075855A3	European Patent Office (EPO)	A3	2009-09-30
JP2009260397A	Japan	A	2009-11-05
JP2009260398A	Japan	A	2009-11-05
KR20090117909A	Republic of Korea	A	2009-11-13
KR100944505B1	Republic of Korea	B1	2010-03-03
US7692182B2	United States of America	B2	2010-04-06
US7692209B2	United States of America	B2	2010-04-06
US2010133508A1	United States of America	A1	2010-06-03
EP2237334A2	European Patent Office (EPO)	A2	2010-10-06
EP2242117A2	European Patent Office (EPO)	A2	2010-10-20
KR20100114549A	Republic of Korea	A	2010-10-25
EP2259340A2	European Patent Office (EPO)	A2	2010-12-08
EP2259341A2	European Patent Office (EPO)	A2	2010-12-08
EP2259342A2	European Patent Office (EPO)	A2	2010-12-08
EP2259347A2	European Patent Office (EPO)	A2	2010-12-08
EP2242117A3This record	European Patent Office (EPO)	A3	2011-01-05
EP2259340A3	European Patent Office (EPO)	A3	2011-01-05
KR101032847B1	Republic of Korea	B1	2011-05-06
KR101066760B1	Republic of Korea	B1	2011-09-21
KR20110110868A	Republic of Korea	A	2011-10-07
US8044384B2	United States of America	B2	2011-10-25
JP2012015535A	Japan	A	2012-01-19
US2012018701A1	United States of America	A1	2012-01-26
KR20120017473A	Republic of Korea	A	2012-02-28
JP2012070008A	Japan	A	2012-04-05
JP2012070009A	Japan	A	2012-04-05
KR20120035950A	Republic of Korea	A	2012-04-16
EP2445066A1	European Patent Office (EPO)	A1	2012-04-25
US8227268B2	United States of America	B2	2012-07-24
US2012298955A1	United States of America	A1	2012-11-29
KR20130006534A	Republic of Korea	A	2013-01-16
KR101236063B1	Republic of Korea	B1	2013-02-22
KR101238241B1	Republic of Korea	B1	2013-03-04
EP1771894B1	European Patent Office (EPO)	B1	2013-04-03

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2025-07-16	Patent expired after termination of 20 yearsExpiredPE20	PE20	GB
2025-07-10	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2025-06-25	Patent expired because of reaching the maximum lifetime of a patentExpiredMK	MK	NL
2025-06-24	Expiry of rightR071	R071	DE
2024-11-22	Amendment of ipc main classPREVIOUS MAIN CLASS: H01L0033320000R079	R079	DE
2024-09-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
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2023-07-12	Opt-out of the competence of the unified patent court (upc) registeredP01	P01	EP
2021-12-03	Change of applicant/patenteeR081	R081	DE
2021-08-04	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)REGISTERED BETWEEN 20210708 AND 20210714732E	732E	GB
2020-07-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2020-05-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2020-05-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2020-03-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
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2019-03-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2019-03-20	Patent lapsedLapsedMM4A	MM4A	IE
2019-03-06	Lapsed because of non-payment of the annual feeLapsedMM	MM	BE
2019-03-01	No opposition filed against granted patent, or epo opposition proceedings concluded without decisionGrantedR097	R097	DE
2019-02-13	Information provided on ipc code assigned after grantRIC2	RIC2	EP
2019-02-13	Information provided on ipc code assigned after grantRIC2	RIC2	EP
2019-02-13	Information provided on ipc code assigned after grantRIC2	RIC2	EP
2019-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
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2019-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2019-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2019-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2019-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2019-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2019-01-31	CorrectionBERICHTIGUNGENPK	PK	CH
2019-01-31	Patent ceasedCeasedPL	PL	CH
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2018-12-15	Deletion acc. to par. 5 (withdrawal of the translation of the ep patent)MK05	MK05	AT
2018-12-14	CorrectionBERICHTIGUNGENPK	PK	CH
2018-11-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2018-10-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2018-10-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
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2018-10-10	Invalidated european patentMG4D	MG4D	LT
2018-07-18	Translation for ep filed (entry of ep into country)FP	FP	NL
2018-06-28	Dpma publication of mentioned ep patent grantGrantedR096	R096	DE
2018-06-27	European patents granted designating irelandGrantedFG4D	FG4D	IE
2018-06-15	Reference to at number (ep patent validated in austria)REF	REF	AT
2018-06-12	Fee paymentPLFP	PLFP	FR
2018-05-31	European patent takes effect as a national patent in ch/liEP	EP	CH
2018-05-30	Divisional application: reference to earlier applicationAC	AC	EP
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2018-04-27	(expected) grantORIGINAL CODE: 0009210GRAA	GRAA	EP
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2010-12-03	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
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2010-10-20	Designated contracting statesAK	AK	EP
2010-09-17	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP

Group III nitride based quantum well light emitting device structures

Abstract

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Priority claims9

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