Heterocyclic compound for organic electroluminescent elements
Summary
USPTO granted Patent US12590076B2 to Idemitsu Kosan Co., Ltd. for a heterocyclic compound represented by formula (1) used in organic electroluminescent elements. The patent, filed on May 10, 2019 (Application No. 17053630), contains 26 claims and covers compounds classified under CPC codes including C07D 307/91 and H01L 51/0052.
What changed
USPTO issued Patent US12590076B2 to Idemitsu Kosan Co., Ltd. for heterocyclic compounds used in organic electroluminescent devices (OLEDs). The patent, granted March 31, 2026, covers compounds represented by formula (1) designed to improve device lifetime, with 26 claims spanning material compositions and electronic device applications.
Patent holders and manufacturers developing OLED technology should review the claims to assess potential licensing requirements or design-around opportunities. The patent provides Idemitsu Kosan exclusive rights to the specified compound formulations and their use in electroluminescent elements until expiration.
Archived snapshot
Mar 31, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device
Grant US12590076B2 Kind: B2 Mar 31, 2026
Assignee
IDEMITSU KOSAN CO., LTD.
Inventors
Hirokatsu Ito, Tasuku Haketa, Yu Kudo
Abstract
Provided is an organic electroluminescent element including a compound that is represented by formula (1) and having a more improved lifetime. In the formula, X, R1-R8, R11-R17, R21-R30, L1, L2, n, and Ar1-Ar3 are as defined in the description:
CPC Classifications
C07D 307/91 H01L 51/0052 H01L 51/0059 H01L 51/006 H01L 51/0061 H01L 51/0073 H01L 51/0074 H01L 51/5056 H01L 51/5064 H01L 51/5068 H10K 50/15 H10K 50/156 H10K 50/157 H10K 85/615 H10K 85/631 H10K 85/633 H10K 85/636 H10K 85/6574 H10K 50/6576
Filing Date
2019-05-10
Application No.
17053630
Claims
26
Named provisions
Related changes
Get daily alerts for USPTO Patent Grants - Organic Chemistry (C07D)
Daily digest delivered to your inbox.
Free. Unsubscribe anytime.
Source
About this page
Every important government, regulator, and court update from around the world. One place. Real-time. Free. Our mission
Source document text, dates, docket IDs, and authority are extracted directly from USPTO.
The summary, classification, recommended actions, deadlines, and penalty information are AI-generated from the original text and may contain errors. Always verify against the source document.
Classification
Who this affects
Taxonomy
Browse Categories
Get alerts for this source
We'll email you when USPTO Patent Grants - Organic Chemistry (C07D) publishes new changes.
Subscribed!
Optional. Filters your digest to exactly the updates that matter to you.