Patent 8643513

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.

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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.

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Inventors

James J. Fallon (Employer: Realtime Data LLC at the time of filing).

Original assignee

The original assignee on US8643513 is Realtime Data LLC. Realtime Data LLC's primary line of business appears to be intellectual property licensing and monetization, rather than product manufacturing. The company has been involved in significant patent litigation. Its current status is active, based on its ongoing involvement in litigation.

Assignment timeline

There are no post-issuance assignments recorded for US8643513 at the USPTO Assignment Center. This indicates that Realtime Data LLC, the original assignee, still maintains ownership of the patent.

Timeline diagram

timeline
    title Ownership of US 8643513
    1998 : Priority date
    2011 : Application filed by Realtime Data LLC
    2014 : Patent granted to Realtime Data LLC

NPE / troll-pattern signals

  1. Shell-entity transfer - not present. There are no recorded transfers from an operating company to a licensing-only LLC.
  2. Known asserter in the chain - unclear. While Realtime Data LLC has engaged in extensive patent litigation, it is not explicitly listed among the provided examples of "known asserters" like Intellectual Ventures or Acacia Research. However, its litigation activities suggest a strong focus on patent assertion.
  3. Repeat correspondent across the chain - not present. With no recorded assignments, there is no chain of correspondents to analyze.
  4. Cascading transfers - not present. No assignments are recorded.
  5. Pre-litigation transfer - not present. No assignments are recorded.
  6. Bankruptcy fire-sale - not present. No bankruptcy-related assignments are recorded.
  7. Privateering - unclear. While the original assignee appears to be focused on patent monetization, there is no public information readily available to confirm if they are asserting patents on behalf of an operating company against competitors.
  8. Defensive aggregator (anti-NPE) - not present. The patent is currently owned by Realtime Data LLC, not a defensive aggregator.

Verdict

NPE — moderate confidence. Although no assignments are recorded at the USPTO, the publicly available information indicates that the original assignee, Realtime Data LLC, is primarily engaged in patent licensing and enforcement activities, with a significant history of litigation. This behavior is consistent with that of a Non-Practicing Entity (NPE).

USPTO Assignment Center search page: https://assignmentcenter.uspto.gov/

Generated 5/29/2026, 8:56:09 PM