Invalidity dossier
US 8484319
Content delivery network (CDN) content server request handling mechanism with metadata framework support
Current assignee: Akamai Technologies Inc
Added 9/21/2026, 9:24:24 AM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview: US8484319B2
Title: Content delivery network (CDN) content server request handling mechanism with metadata framework support
Patent number: US8484319B2 | Application: US13/400,146 | Publication: US20120151016A1
Assignee: Akamai Technologies, Inc. (Cambridge, Mass.), original and current assignee.
Inventors: Joel M. Wein; David R. Karger; John Joseph Kloninger; Philip A. Lisiecki; Mark C. Nottingham
Key dates: Priority date 2000-04-14; filing date 2012-02-20; publication date 2013-07-09; anticipated expiration 2021-04-16. Status: Expired – Fee Related.
Purpose: The invention relates generally to high-performance, fault-tolerant HTTP, streaming media and applications delivery in a content delivery network (CDN).
Plain-language scope (from the supplied excerpt): A CDN is described as a self-organizing network of geographically distributed content delivery nodes that efficiently deliver digital content (Web content, streaming media, applications) on behalf of third-party content providers. A user request for content is directed to a "best" replica—typically the one that serves the item faster than fetching from the content provider's origin server. A CDN is implemented as a combination of a content delivery infrastructure (surrogate origin servers at strategic locations), a request-routing mechanism (allocating servers to minimize client response time for web content and maximize streaming quality), and a distribution infrastructure (on-demand or push-based mechanisms moving content from origin to surrogates). Content modification lets a content provider control request-routing without switching devices or directory services; a content provider can modify embedded object references (e.g., HTML URIs or SMIL directives) so the client fetches from the best surrogate rather than the origin. In some CDNs, such as Akamai FreeFlow®, metadata about content provider objects—control options and parameters determining how a CDN content server handles an object request—is often encoded "in-URL." Such metadata may include a CP code for billing, coherence information (TTL or fingerprint), a unique serial number for load balancing, access control data, and an origin hostname.
Source: https://patents.google.com/patent/[US8484319](/patent/US8484319)/en
What the excerpt does not establish: The full claim set, detailed embodiments, and the specific "metadata framework" mechanics are not included. Classifications (H04L61/4511, H04L63/08, etc.) appear in the source but are omitted here. This overview reflects only the supplied excerpt.
Generated 10/1/2026, 10:02:31 PM
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Prior art
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