USPatentGranted
B2

Organic light emitting device

Granted 11 Sep 2012 · 2 office actions

Current assignee: Samsung Display · originally Samsung Electronics

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Inventors: Seok-Hwan Hwang, Yoon-Hyun Kwak, Jong-Hyuk Lee, Jin-O Lim +3 · Examiner: Wai Sing Louie · AU 2896 · TC 2800

Life of the patent

7 dated events
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Abstract

Embodiments of the present invention are directed to a heterocyclic compound and an organic light-emitting device including the heterocyclic compound. The organic light-emitting devices using the heterocyclic compounds have high-efficiency, low driving voltage, high luminance and long lifespan.

Claims

17 · 2 independent · depth 3
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17 granted claims

Classifications

3 codes
IPC · International Patent Classification
Section H — Electricity
  • H01L51/00
USPC · US Patent Classification
257/40257/E51.001

Claim changes

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File wrapper

⤢ drag to zoomJul 2010Oct 2010Jan 2011Apr 2011Jul 2011Oct 2011Jan 2012Apr 2012Jul 2012Oct 2012USPTOApplicantNon-final rejectionResponse after non-final
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Pendency
2.1 y
763 days filing → grant
Office actions
1
non-final + final
Responses
1
no RCE
Examiner
Wai Sing Louie
art unit 2896 · TC 2800
Citations: 25 back · 0 forward

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Term & fees

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Priority chain

1 priority documents
›Priority documents — 1
TypeDocumentDate
related publicationUS 20110037060 A117 Feb 2011

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Citations

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