Invalidity dossier
US 6804780
System and method for protecting a computer and a network from hostile downloadables
Current assignee: Finjan LLC
Added 9/23/2026, 3:49:14 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 — US6804780B1
Title: System and method for protecting a computer and a network from hostile downloadables
Patent number: US6804780B1
Application number: US09/539,667
Inventor: Shlomo Touboul
Original assignee: Finjan Software Ltd
Current assignee (as listed): Finjan LLC
Priority date (as listed): 1996-11-08
Filing date: 2000-03-30
Publication/grant date: 2004-10-12
Legal status (as listed): Expired – Lifetime
Source: https://patents.google.com/patent/[US6804780](/patent/US6804780)/en
Purpose (plain language): The patent concerns protecting a computer and a network from hostile downloadables. According to the supplied text, the recurring prior-art keywords are "downloadable," "security," "policy," "downloadables," and "comparator." Read together, these indicate a security policy is applied to a downloadable, with a comparator used in evaluating it. This is a description of the keywords only; the excerpt does not supply the claims, so the precise scope cannot be stated.
Scope: The supplied text is the bibliographic/legal-events portion of the Google Patents page, plus litigation and assignment entries. It does not include the abstract, specification, drawings, or claims. Accordingly, no element of claim scope — such as what a "comparator" compares, how a "security policy" is defined or enforced, or what constitutes a "hostile downloadable" — can be confirmed from this excerpt.
What the excerpt does not establish:
- The claims, their number, or their wording.
- The abstract, specification, or any technical implementation detail.
- The identity or content of any cited prior art.
- The accuracy of the listed dates, assignees, or legal status (each is expressly marked as an assumption, not a legal conclusion).
- The outcome, merits, or relevance of any litigation, PTAB, or assignment entry listed; these are recorded events only and are not evaluated here.
Per instructions, litigation, ownership transfers, validity, and prior art were not researched.
Generated 10/1/2026, 9:51:21 PM
Cases on file (0)
Specific litigation cases in our database that name US patent 6804780. The free-form analysis below may also discuss cases beyond this list.
No cases on file mention this patent. Upload a CSV or add a case manually in Admin → Manage litigation cases.
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Proceedings on file (0)
All PTAB activity →AIA trial proceedings (IPR / PGR / CBM) filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced from the USPTO Open Data Portal and refreshed every six hours; each proceeding number deep-links to the PTAB E2E docket.
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.