USPatentGranted
B2

Organic light-emitting device

Granted 26 May 2015 · 4 office actions

Current assignee: Samsung Display · originally Samsung Electronics

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Attorney: Attorney · Log in to unlock

Inventors: Jong-Hyuk Lee, Yoon-Hyun Kwak, Seok-Hwan Hwang, Young-Kook Kim +2 · Examiner: Dawn L. Garrett · AU 1786 · TC 1700

Life of the patent

11 dated events
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Abstract

A heterocyclic compound represented by Formula 1 or Formula 2 below and an organic light-emitting device including the heterocyclic compound: [structure] wherein X 1 , X 2 , and R 1 through R 16 are defined as in the specification.

Claims

34 · 2 independent · depth 4
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34 granted claims

Classifications

12 codes
IPC · International Patent Classification
Section C — Chemistry; metallurgy
  • C07D471/04
  • C07D403/10
  • C07D487/04
  • C09K11/06
  • C07D401/14
  • C07D209/58
  • C07D417/10
Section H — Electricity
  • H01L51/54
  • H05B33/14
  • H01L51/50
  • H01L51/00
USPC · US Patent Classification
428/690

Claim changes

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File wrapper

⤢ drag to zoomJul 2011Jan 2012Jul 2012Jan 2013Jul 2013Jan 2014Jul 2014Jan 2015Jul 2015USPTOApplicantRestriction requirementResponse after non-finalResponse after non-finalNotice of allowance
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Pendency
4.0 y
1,478 days filing → grant
Office actions
2
after a restriction
Responses
3
no RCE
Examiner
Dawn L. Garrett
art unit 1786 · TC 1700
Citations: 34 back · 1 forward

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Term & fees

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Priority chain

1 priority documents
›Priority documents — 1
TypeDocumentDate
related publicationUS 20110297919 A18 Dec 2011

Validity challenges

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Citations

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