Invalidity dossier
US 7703126
Hierarchical trust based posture reporting and policy enforcement
Current assignee: Intel Corp
Added 9/23/2026, 8:36:58 PM
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Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US7703126B2
Title: Hierarchical trust based posture reporting and policy enforcement
Patent number / application: US7703126B2; Application US11/395,504
Inventors: Hormuzd Khosravi, David Durham, Karanvir Grewal
Assignee: Intel Corp (original and current assignee as listed)
Key dates: Priority/filing date 2006-03-31; publication of US20070234402A1 on 2007-10-04; granted/publication date 2010-04-20; adjusted expiration listed as 2029-02-18. Status listed as Active (a legal-status assumption, not a legal conclusion).
Purpose (plain language): The patent addresses granting computing devices access to networks only after establishing trust, in layers. It describes using posture information (such as whether a device and its elements are who or what they claim to be, and whether rogue agents have compromised that trust) to decide what network access a device or its elements receive, and what remediation is needed if access is denied. It also addresses risks from rogue agents mimicking authorized devices or spoofing authentication, and from viruses/worms carried onto a corporate network at a device's next connection.
Plain-language scope (from supplied text): The described approach relates to hierarchical trust for posture reporting and policy enforcement, network access control, filtering policies, countermeasures against malicious traffic (including malware propagation), and security at a particular protocol layer, including use of secure communication channels (e.g., IEEE 802.11i, IEEE 802.1AE, IPsec/RFC 2401, TLS/RFC 2246) and the IEEE 802.1X framework for exchanging authenticated identity and posture information before granting at least some network access, with authentication performed before a device acquires an IP address. Certain figures (1–6) illustrate example systems, a manageability engine architecture, a method to obtain network access, a platform accessing multiple networks, and a method to establish multiple layers of hierarchical trust.
What this excerpt does not establish: The excerpt omits the claims, most of the detailed description, and the abstract. It therefore does not establish the specific claim scope, claim limitations, or the exact legal metes and bounds of the invention.
Source: https://patents.google.com/patent/[US7703126](/patent/US7703126)/en
Generated 10/1/2026, 9:41:16 PM
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Litigation summary
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Proceedings on file (0)
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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.