Invalidity dossier
US 12107893
Methods and systems for protecting a secured network
Current assignee: Centripetal Networks LLC
Added 9/23/2026, 9:18:04 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview: US 12107893 B2
Title: Methods and systems for protecting a secured network
Patent number: US 12107893 B2
Application number: US 17/230,425
Inventors: Steven Rogers, Sean Moore, David K. Ahn, Peter P. Geremia
Assignee: Centripetal Networks LLC (original assignee Centripetal Networks, Inc.; later changed to LLC per the assignment record)
Priority date: 2012-10-22 (claimed from US 13/657,010)
Filing date: 2021-04-14
Publication date / grant date: 2024-10-01 (published as US 20210306379 A1 on 2021-09-30)
Status: Active, with an adjusted expiration of 2033-05-29
Purpose and plain-language scope (per the supplied excerpt): The patent addresses protecting a secured network using one or more packet security gateways associated with a security policy management server. A packet security gateway may receive a dynamic security policy from the management server, receive packets associated with the protected network, and perform at least one of multiple packet transformation functions specified by that policy. The excerpt states that performing the transformation may include a function other than merely forwarding or dropping packets. Two or more packet security gateways may be configured in series, so packets forwarded by a first gateway are received by a second; where the dynamic policy includes two rules requiring sequential execution, a first gateway may perform a function specified by one rule, and a second gateway may subsequently perform a function specified by another. The excerpt also notes that scalable proactive solutions have historically been considered untenable due to the difficulty of filtering substantially all traffic at high resolution.
Source: https://patents.google.com/patent/US12107893/en
What the excerpt does not establish: It does not set out the full claims; does not specify the exact packet transformation functions, rule structures, or protocols used (TCP, IP, IPsec, and DDoS appear only as definitions/classifications); and does not establish the full specification content, listed prior art, family members beyond those noted (including US 12563103 B2), or any litigation details beyond a litigation-data link. It also contains no verified legal conclusions about validity or claim scope.
Generated 10/1/2026, 9:34:24 PM
Cases on file (0)
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Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Proceedings on file (0)
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No PTAB proceedings on file. This patent has not been challenged via IPR, PGR, or CBM. The absence is itself a signal — well-asserted patents eventually attract IPRs. The LLM analysis below may surface filings the ODP feed hasn’t indexed yet.
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
Earlier patents, publications, and products that may anticipate or render the claims unpatentable.
Obviousness
Combinations of prior art that suggest the claimed invention would have been obvious under 35 U.S.C. § 103.
Extensions
Patent term adjustments, term extensions, continuations, divisionals, family members, and expiration dates.
Derivative works
Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.