Invalidity dossier
US 8558223
Added 10/22/2026, 4:01:11 AM
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Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview: US 8,558,223 B2
Title: Organic electronic component and method for the production thereof
Patent number: US 8,558,223 B2 (application US 13/121,090; published as US 2011/0309340 A1)
Assignee: Original assignee Osram Opto Semiconductors GmbH (current assignee listed as Pictiva Displays International Ltd.)
Key dates: Priority 2008-09-26; filed 2009-09-25; granted 2013-10-15; anticipated expiration 2029-09-25.
Inventors: Günter Schmid, Ralf Krause, Andreas Kanitz, Jürgen Adler, Stefan Seidel, Arvid Hunze.
Purpose: Organic electronic components such as OLEDs need layers with very high electron conductivity, which strongly affects efficiency and serviceable life. Purely crystalline electron-transport layers, per the text, suffer from regions of differing conductivity, producing non-uniform electron flow that can overheat and damage the layer and cause inhomogeneous emission. The stated object is an electron-conducting layer with high electron conductivity.
Plain-language scope: The component comprises a substrate, a first and a second electrode, and an electron-conducting layer electrically conductively connected to at least one electrode. That layer is obtained by joint vaporization of a metal complex (having a central metal atom) with an organic compound. The two materials interact in the gas phase or on the substrate, becoming mutually coordinated; the organic compound coordinates to the metal atom without ligand exchange, leaving free coordination sites. The resulting layer is amorphous overall but has short-range order. Metal complexes with two central atoms, especially tungsten (W), are preferred because they can accept additional ligands and have very low ionization enthalpy, enabling electron donation and charge transfer; heteroaromatic organic compounds are also described.
Source: https://patents.google.com/patent/US8558223/en
What the excerpt does not establish: The excerpt is explicitly partial (text omitted), and the claim language itself is not reproduced here, so exact claim scope (including dependent-claim limitations) cannot be confirmed. The supplied text also does not provide examples, measured conductivities, layer thicknesses, full compound lists, or figures. Consistent with instructions, no litigation, validity, or prior-art analysis is presented.
Generated 10/22/2026, 4:10:48 AM
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Litigation summary
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PTAB challenges
AIA trial proceedings at the USPTO Patent Trial and Appeal Board — IPR, PGR, and CBM. Petitioners, judge panels, claim-level invalidation outcomes from Final Written Decisions, and Federal Circuit appeals. The single most important defensive datapoint after litigation history.
Assignment history
Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.
Prior art
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Obviousness
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Extensions
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Derivative works
Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.