Patent 12452192

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.

✓ Generated

Inventors

The named inventors are Joseph E. RUBENSTEIN, Carlos Eduardo ORE, Thibaud August Bernard Jean SAINT-MARTIN, Fred Broussard, and Jørn Allen Dose KNUTSEN. At the time of filing, it is assumed they were all employed by Umbra Technologies Ltd., the original assignee of the patent.

Original assignee

The original assignee on the issued patent US12452192 is Umbra Technologies Ltd. Their primary line of business, as described by the patent, involves "Systems and methods for providing a global virtual network (GVN)," which offers network optimization services. The patent text does not explicitly state whether Umbra Technologies Ltd. ships a product embodying the claims. As of the current date, Umbra Technologies Ltd. is operating and is actively asserting this patent in litigation.

Assignment timeline

No assignment records for US Patent 12,452,192 were found in the USPTO Patent Assignment Search database. This indicates that the patent has not been formally assigned since its issuance, and the original assignee, Umbra Technologies Ltd., remains the current owner.

Timeline diagram

timeline
    title Ownership of US 12452192
    2015 Apr 7 : Priority date
    2016 Apr 7 : PCT filed by Umbra Technologies
    2025 May 12 : US application filed by Umbra Tech
    2025 Oct 21 : Issued to Umbra Technologies
    2025 : First infringement suit filed
    2026 : Ex parte reexam initiated

NPE / troll-pattern signals

  1. Shell-entity transfer — Not present. There is no record of the patent being transferred from an operating assignee to a licensing-only LLC.
  2. Known asserter in the chain — Not present. Umbra Technologies Ltd. is the original and current assignee, and no transfer to a known NPE is recorded.
  3. Repeat correspondent across the chain — Not present. There is no chain of assignments to analyze for recurring correspondents.
  4. Cascading transfers — Not present. No multiple consecutive assignments have been recorded.
  5. Pre-litigation transfer — Not present. No assignment was recorded prior to the litigation commencing.
  6. Bankruptcy fire-sale — Not present. There is no indication of the original assignee filing for bankruptcy or the patent being sold in such proceedings.
  7. Privateering — Unclear. While Umbra Technologies Ltd. is asserting the patent against Zscaler, Inc. in litigation, the provided information does not offer sufficient detail about Umbra Technologies Ltd.'s operating business or its competitive relationship with Zscaler to definitively determine if this is privateering or a direct assertion by an operating company against a competitor.
  8. Defensive aggregator (anti-NPE) — Not present. The patent is being asserted by Umbra Technologies Ltd., not held by a defensive aggregator.

Verdict

Operating-company assertion

Umbra Technologies Ltd. is the original assignee of US Patent 12,452,192 and remains the current recorded owner, with no assignment records found in the USPTO database. The patent is actively being asserted by Umbra Technologies Ltd. in litigation against Zscaler, Inc., indicating a direct assertion by the entity that originally developed and owns the patent.

Verification link: https://assignmentcenter.uspto.gov/

Generated 5/29/2026, 9:07:07 PM