Patent 12154652

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 (2)

Asserters network →

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

  1. 2023-05-18 · recorded 2025-09-08 · reel 072191/0362 · ASSIGNMENT OF ASSIGNORS INTEREST

    ETRON TECHNOLOGY, INC.VALUECREATION TECHNOLOGY, INC.

    Correspondent: ROBERT J. WONG · WONG CABELLO LUTSCH PATTERSON & GRAF

    shell-entity transfer

  2. 2025-05-01 · recorded 2025-09-11 · reel 072228/0449 · ASSIGNMENT OF ASSIGNORS INTEREST

    VALUECREATION TECHNOLOGY, INC.WECREVENTION, INC.

    Correspondent: BRIAN KOWERT · KOWERT, HOOD, MUNYON, RANKIN & GOETZ

    transfer-to-asserter

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

  • Der-Min Yuan (Employer: Etron Technology Inc.)
  • Yen-An Chang (Employer: Etron Technology Inc.)
  • Wei-Ming Huang (Employer: Etron Technology Inc.)

Original assignee

The original assignee listed on the patent is Etron Technology Inc. Etron Technology Inc. is a Taiwanese fabless IC design company that designs and develops integrated circuits, primarily focusing on memory products such as DRAM, USB 3.0, and Flash. As of the current date, Etron Technology Inc. is an operating company.

Assignment timeline

  • 2023-05-18 (executed) / recorded 2025-09-08 — Reel 072191/0362
    • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
    • Assignor: ETRON TECHNOLOGY, INC.
    • Assignee: VALUECREATION TECHNOLOGY, INC.
    • Correspondent: ROBERT J. WONG, WONG CABELLO LUTSCH PATTERSON & GRAF, L.L.P., 20333 SH 249, SUITE 600, HOUSTON, TX 77070.
    • Context: Transfer of rights to the invention from the original developer to a new entity, effective prior to this patent's filing.
  • 2025-05-01 (executed) / recorded 2025-09-11 — Reel 072228/0449
    • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
    • Assignor: VALUECREATION TECHNOLOGY, INC.
    • Assignee: WECREVENTION, INC.
    • Correspondent: BRIAN KOWERT, KOWERT, HOOD, MUNYON, RANKIN & GOETZ, P.C., P.O. BOX 398, AUSTIN, TX 78767-0398.
    • Context: Transfer of patent rights between entities, ultimately to the current assignee.

Timeline diagram

timeline
    title Ownership of US 12154652
    2023-05-18 : Rights to invention assigned to VALUECREATION TECHNOLOGY
    2023-12-15 : Patent application filed
    2024-11-26 : Patent issued
    2025-05-01 : Assigned to WECREVENTION INC

NPE / troll-pattern signals

  1. Shell-entity transfer — present. The patent was transferred from Etron Technology Inc., an operating company, to VALUECREATION TECHNOLOGY, INC. (Reel 072191/0362), and subsequently to WECREVENTION, INC. (Reel 072228/0449). Both "VALUECREATION TECHNOLOGY, INC." and "WECREVENTION, INC." have names suggestive of non-operating, licensing, or holding companies.
  2. Known asserter in the chain — present. WECREVENTION, INC. is the current assignee and the patent is currently involved in multiple US District Court litigations (e.g., 2:25-cv-00951, 7:25-cv-00458) and a PTAB IPR (IPR2026-00243). This indicates WECREVENTION, INC. is an active asserter.
  3. Repeat correspondent across the chain — not present. The correspondent for the first assignment (Reel 072191/0362) was Robert J. Wong of Wong Cabello Lutsch Patterson & Graf, L.L.P., while the correspondent for the second assignment (Reel 072228/0449) was Brian Kowert of Kowert, Hood, Munyon, Rankin & Goetz, P.C. These are different individuals and firms.
  4. Cascading transfers — not present. The two recorded assignments are separated by an execution date difference of approximately two years (2023-05-18 to 2025-05-01), which does not constitute cascading transfers.
  5. Pre-litigation transfer — present. The assignment to WECREVENTION, INC. was executed on 2025-05-01 (Reel 072228/0449). Multiple infringement suits in US District Courts began to be filed in 2025, closely following the execution date of this transfer.
  6. Bankruptcy fire-sale — not present. There is no indication that Etron Technology Inc. underwent bankruptcy proceedings.
  7. Privateering — unclear. While the transfer is from an operating company (Etron) to apparent shell entities, there is no direct evidence (e.g., SEC filings or public reports) confirming a privateering arrangement where Etron is covertly benefiting from the assertions.
  8. Defensive aggregator (anti-NPE) — not present. The chain terminates with WECREVENTION, INC., which is an active asserter, not a defensive aggregator.

Verdict

NPE — high confidence
Justification: The patent demonstrates strong NPE patterns, including transfers from an operating company (Etron Technology Inc.) to apparent shell entities (VALUECREATION TECHNOLOGY, INC. and WECREVENTION, INC.). The current assignee, WECREVENTION, INC., is actively asserting the patent in multiple district court litigations, and the final assignment to WECREVENTION, INC. (executed 2025-05-01, Reel 072228/0449) closely precedes these assertions.

USPTO Assignment Center Search: US12154652

Generated 5/29/2026, 12:49:15 AM