Invalidity dossier
US 8510821
Tiered network flow analysis
Current assignee: Amazon Technologies Inc
Added 9/21/2026, 9:26:10 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 — US8510821B1
Title: Tiered network flow analysis
Assignee: Amazon Technologies Inc. (original assignee; assignment recorded 2012-11-01 to Amazon Technologies, Inc.)
Inventors: Eric Jason Brandwine; Swaminathan Sivasubramanian; Bradley E. Marshall; Tate Andrew Certain
Key dates: Priority/filing date 2010-06-29; application no. US12/825,718; publication/grant 2013-08-13; adjusted expiration listed as 2031-09-27. Legal status listed as active, with the source noting this is an assumption and not a legal conclusion.
Purpose and plain-language scope: The patent addresses monitoring network traffic in tiers. Per the supplied text, a first-tier analysis module receives a network flow, performs an initial analysis to detect matches to a first set of criteria, and, upon a match, flags the flow to be redirected to a second-tier analysis module. The second-tier module performs a deeper analysis; if it detects a match to a second set of criteria, it performs an action, and if no match is found, it forwards the network flow to the intended recipient. The description frames this as performing a fast or computationally inexpensive first analysis, then, if an intrusion or other problem is suspected, redirecting the flow to another process, virtual machine, or physical computer for a deeper, more expensive analysis. If the deeper analysis finds no issue, the flow can proceed to its intended recipient; if an issue is found, the flow can be ignored, sent to an untrusted portion of the system, delayed, or otherwise handled or flagged. The figures describe a substrate network with computing nodes, virtual computer networks, overlay networks, virtual and substrate routing, virtual route propagation, and a network translation device, plus systems and a method for tiered network flow analysis.
What the excerpt does not establish: It does not supply the full claims or full specification, the exact "first set" and "second set" of criteria, specific implementation details, or any findings on validity, enforceability, infringement, or prior art. No litigation or ownership-transfer information beyond the recorded assignment is provided.
Source: https://patents.google.com/patent/[US8510821](/patent/US8510821)/en
Generated 10/1/2026, 10:02:25 PM
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Litigation summary
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PTAB challenges
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Assignment history
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Prior art
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Obviousness
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Extensions
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Derivative works
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