Invalidity dossier

US 5845265

Consignment nodes

Current assignee: eBay Inc

Added 9/23/2026, 4:45:29 PM

At a glanceNo PTAB challengesNo litigation on file

Active provider: DeepSeek · deepseek-flash

Patent summary

Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.

✓ Generated

US 5,845,265 — "Consignment Nodes"

Bibliographic facts (from supplied source):

  • Patent number: US 5,845,265 A; application US 08/554,704.
  • Inventor: Thomas G. Woolston. Original assignee: MercExchange LLC. Current assignee(s) listed: eBay Inc; MercExchange Va LLC.
  • Priority date: 1995-04-26. Filing date: 1995-11-07. Publication/grant: 1998-12-01.
  • Status listed: Expired – Lifetime (anticipated expiration 2015-04-26).
  • Classifications: G06Q 30/06; G06Q 20/08; G06Q 20/12; G06Q 40/04.

Purpose and plain-language scope: The invention relates to used and collectible goods offered for sale over an electronic network of consignment stores. Described components include: a consignment node — a computer database of used goods, preferably operated by a collectibles shopkeeper or bailee; a low-cost posting terminal for small store owners to present goods to a computerized market, track sales, and control posted inventory; and a network connecting "trusted" licensee or franchisee nodes. The network lets shopkeepers establish electronic markets and auctions, search each other's shops for hard-to-find items, and electronically present goods to market. A stated aim is a two-tiered market: a retail price tier and a wholesale/dealer-to-dealer tier, with pre-approved authorized-dealer access. A node may become a "dominant market maker" for a class of goods, with a central market maker computer virtually divided into different markets; participants can reach distant nodes through their local node. The excerpt also frames the invention as an electronic "market maker," electronic "presentment" of goods, and an electronic agent to search the network.

What the excerpt does not establish: It is expressly an excerpt; the full specification, all claims, and the drawings are not included here, so the enforceable claim scope cannot be determined from this text. The source states legal status, assignee lists, and priority dates are assumptions, not legal conclusions, and it disclaims performing a legal analysis. No findings are offered here on validity, infringement, prior art, or ownership.

Source: https://patents.google.com/patent/US5845265/en

Generated 10/1/2026, 9:44:14 PM

Cases on file (0)

Specific litigation cases in our database that name US patent 5845265. 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.

Log in to generate
Not generated yet. Log in to request this analysis.

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.

Log in to generate
Not generated yet. Log in to request this analysis.

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.

Log in to generate
Not generated yet. Log in to request this analysis.

Prior art

Earlier patents, publications, and products that may anticipate or render the claims unpatentable.

Log in to generate
Not generated yet. Log in to request this analysis.

Obviousness

Combinations of prior art that suggest the claimed invention would have been obvious under 35 U.S.C. § 103.

Log in to generate
Not generated yet. Log in to request this analysis.

Extensions

Patent term adjustments, term extensions, continuations, divisionals, family members, and expiration dates.

Log in to generate
Not generated yet. Log in to request this analysis.

Derivative works

Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.

Log in to generate
Not generated yet. Log in to request this analysis.