Patent 9900249

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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Ownership chain (3)

Asserters network →

Structured records extracted from the assignment-history narrative below. Each entity links to its full ownership-network profile.

  1. 2023-12-22 · reel 006325/0733 · Assignment

    NEC CORPORATIONNEC ASIA PACIFIC PTE LTD.

    Correspondent: · BLANK ROME

    Internal reorganization

  2. 2024-01-27 · reel 006366/0634 · Assignment

    NEC ASIA PACIFIC PTE LTD.IP WAVE PTE. LTD.

    Correspondent: · BLANK ROME

    Transfer to a likely shell entity

  3. 2024-06-27 · reel 006497/0861 · Assignment

    IP WAVE PTE. LTD.CLOUD BYTE LLC.

    Correspondent: · BLANK ROME

    Transfer to a likely shell entity

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

  • Jun Awano (NEC Corp)

No unusual patterns detected regarding inventor departures.

Original assignee

NEC Corp. It is unclear from the provided text whether NEC Corp shipped a product embodying the claims of US9900249B2. NEC Corporation is a Japanese multinational information technology and electronics corporation, primarily engaged in providing IT services and products. NEC Corp is currently operating.

Assignment timeline

  • 2023-12-22 (executed) / recorded 2023-12-22 — Reel 006325/0733
    • Conveyance: Assignment
    • Assignor: NEC Corporation
    • Assignee: NEC Asia Pacific Pte Ltd.
    • Correspondent: BLANK ROME LLP (D.C. 20036, US). This correspondent is not flagged as recurring in this chain based on the provided data.
    • Context: Internal reorganization.
  • 2024-01-27 (executed) / recorded 2024-01-27 — Reel 006366/0634
    • Conveyance: Assignment
    • Assignor: NEC ASIA PACIFIC PTE LTD.
    • Assignee: IP WAVE PTE LTD.
    • Correspondent: BLANK ROME LLP (D.C. 20036, US). This correspondent has recurred in this chain.
    • Context: Transfer to a likely shell entity.
  • 2024-06-27 (executed) / recorded 2024-06-27 — Reel 006497/0861
    • Conveyance: Assignment
    • Assignor: IP WAVE PTE LTD.
    • Assignee: CLOUD BYTE LLC
    • Correspondent: BLANK ROME LLP (D.C. 20036, US). This correspondent has recurred in this chain.
    • Context: Transfer to a likely shell entity.

Timeline diagram

timeline
    title Ownership of US 9900249
    2014 : Application filed by NEC Corp
    2018 : Granted to NEC Corp
    2023 : Assigned to NEC Asia Pacific Pte Ltd
    2024 : Assigned to IP WAVE PTE LTD
         : Assigned to CLOUD BYTE LLC

NPE / troll-pattern signals

  1. Shell-entity transfer — present.

    • 2024-01-27 (executed) / recorded 2024-01-27 — Reel 006366/0634: NEC Asia Pacific Pte Ltd. assigned to IP WAVE PTE LTD. The name "IP WAVE PTE LTD." strongly suggests a licensing-focused entity.
    • 2024-06-27 (executed) / recorded 2024-06-27 — Reel 006497/0861: IP WAVE PTE LTD. assigned to CLOUD BYTE LLC. The current assignee, CLOUD BYTE LLC, also has a name suggestive of a shell entity, especially given the preceding transfers.

  2. Known asserter in the chain — unclear. Neither IP WAVE PTE LTD. nor CLOUD BYTE LLC currently appear on major public NPE lists based on the provided information, but they are relatively recent assignees.

  3. Repeat correspondent across the chain — present. BLANK ROME LLP (D.C. 20036, US) acted as correspondent for all three recorded assignments: Reel 006325/0733 (2023-12-22), Reel 006366/0634 (2024-01-27), and Reel 006497/0861 (2024-06-27).

  4. Cascading transfers — present. The patent was assigned from NEC Corp to NEC Asia Pacific Pte Ltd. (2023-12-22), then to IP WAVE PTE LTD. (2024-01-27), and then to CLOUD BYTE LLC (2024-06-27) within a 7-month period, with the same correspondent appearing across these transfers.

  5. Pre-litigation transfer — unclear. While there is litigation activity associated with this patent (IPR2025-01284 and two US cases filed in Texas Eastern District Court), the specific filing dates of these cases relative to the assignment dates would need to be cross-referenced more precisely to confirm a "pre-litigation transfer" signal. The earliest litigation noted is "US case filed in Texas Eastern District Court" without a specific filing date, making it hard to compare with the assignments.

  6. Bankruptcy fire-sale — not present. The original assignee, NEC Corp, is an active operating company.

  7. Privateering — unclear. There is no information in the provided data or legal events to suggest privateering activity.

  8. Defensive aggregator (anti-NPE) — not present. The current assignee, CLOUD BYTE LLC, is not a known defensive aggregator.

Verdict

NPE — high confidence. The presence of multiple shell-entity transfers (Reel 006366/0634 to IP WAVE PTE LTD. and Reel 006497/0861 to CLOUD BYTE LLC), cascading transfers within a short period, and the consistent use of the same correspondent firm (BLANK ROME LLP) across these transfers strongly indicate an NPE pattern. The original assignee, NEC Corp, transferred the patent through a series of entities, ultimately to CLOUD BYTE LLC, which does not appear to be an operating company.

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

Generated 5/20/2026, 6:45:34 AM