Assignment history

Inventors

James J. Fallon: No employer listed on the patent. The patent lists Realtime Data LLC as the current and original assignee.

Original assignee

Realtime Data LLC:

• Shipped product: Unclear. Realtime Data LLC's website, as of May 2026, focuses on patent licensing and assertion, not product sales related to data compression. Prior information suggests they were involved in data compression technologies, but direct product embodiment for this specific patent's claims is not readily determinable through public information.
• Primary line of business: Patent licensing and assertion.
• Current status: Operating, primarily as a patent assertion entity, based on extensive litigation records.

Assignment timeline

The USPTO Patent Assignment Search (https://assignmentcenter.uspto.gov/) shows no recorded assignments for US9054728B2 other than the original assignment to Realtime Data LLC at the time of issue, which is generally not recorded as a separate event in the assignment system but rather as the assignee on the front page of the patent. The Google Patents legal events also indicate that Realtime Data LLC is the Current Assignee and Original Assignee, with an assignment date of 2014-09-24, which is the filing date.

Timeline diagram

timeline
    title Ownership of US 9054728B2
    2014 : Filed by Realtime Data LLC
    2015 : Issued to Realtime Data LLC
    2016 : US case filed in Texas
    2017 : IPR cases filed
    2018 : US cases filed in DE
    2019 : US case filed in CA
    2020 : US cases filed in DE
    2021 : US cases filed at CAFC
    2023 : US case filed at CAFC
    2024 : US case filed at SCOTUS

NPE / troll-pattern signals

1. Shell-entity transfer: Not present. The patent was originally assigned to Realtime Data LLC and remains with them. There's no transfer from an operating company to a licensing-only LLC.
2. Known asserter in the chain: Present. Realtime Data LLC is identified by Unified Patents as a patent assertion entity. The Google Patents page for US9054728B2 itself lists extensive litigation, including multiple PTAB cases and district court cases across various jurisdictions (Delaware, California, Colorado, Massachusetts, Texas), which is characteristic of a patent assertion entity.
3. Repeat correspondent across the chain: Not present. No assignment chain beyond the original assignee is recorded in the USPTO Assignment Center, so there are no subsequent correspondents to analyze for recurrence.
4. Cascading transfers: Not present. No subsequent assignments are recorded.
5. Pre-litigation transfer: Unclear. The patent was assigned to Realtime Data LLC on its filing date (2014-09-24) and issued to them on 2015-06-09. The first recorded litigation in the Google Patents data is a US case filed in California Central District Court in 2016 (2:16-cv-02743). There is no recorded transfer within 6 months before this litigation.
6. Bankruptcy fire-sale: Not present. There is no indication in the patent record or public sources that Realtime Data LLC underwent bankruptcy proceedings and sold this patent as a result.
7. Privateering: Unclear. While Realtime Data LLC is an NPE, there's no specific evidence in the provided data suggesting it is asserting patents on behalf of a specific operating company against competitors.
8. Defensive aggregator (anti-NPE): Not present. The patent remains with Realtime Data LLC, a known assertion entity, and has not been transferred to a defensive aggregator.

Verdict

NPE — high confidence

Realtime Data LLC, the current assignee, is a known patent assertion entity, as evidenced by the extensive litigation history associated with this patent across multiple district courts and the PTAB. The company's current business model, as indicated by public information and the sheer volume of litigation, is centered on patent licensing and assertion. This provides strong confidence that the patent is being used for assertion purposes.

USPTO Assignment Center search for US9054728B2: https://assignmentcenter.uspto.gov/