Assignment history

Inventors

• Der-Min Yuan
• Yen-An Chang
• Wei-Ming Huang

The patent document does not explicitly state the inventors' employers at the time of filing. However, the original assignee is Etron Technology Inc.

Original assignee

The original assignee on the issued patent is Etron Technology Inc. They are a world-renowned fabless IC design and product company based in Hsinchu City, Taiwan, specializing in buffer memory, logic chip designs, electronic applications, and system-on-chips. Their product portfolio includes Commercial DRAM, Industrial DRAM, Automotive DRAM, Known Good Die, Innovative DRAM, and Flash memory, as well as USB and 3D Sensing logic ICs. Etron Technology Inc. ships products embodying the claims, specifically various types of DRAMs. Etron Technology Inc. is currently operating and is a publicly held company trading on the Taipei Exchange (TPEx: 5351.TW).

Assignment timeline

The following assignments are recorded for US patent 11894098:

• 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: Not explicitly stated in Google Patents, but retrieved from USPTO Assignment Center: Jeffrey H. Rosedale, JEFFREY H. ROSEDALE, 5500 PRESTON RD, SUITE 250, PLANO, TX 75093.
  • Context: Transfer from original operating company to a distinct entity.
• 2025-05-01 (executed) / recorded 2025-09-11 — Reel 072228/0328
  • Conveyance: Assignment of Assignors Interest
  • Assignor: VALUECREATION TECHNOLOGY, INC.
  • Assignee: WECREVENTION, INC.
  • Correspondent: Not explicitly stated in Google Patents, but retrieved from USPTO Assignment Center: Jeffrey H. Rosedale, JEFFREY H. ROSEDALE, 5500 PRESTON RD, SUITE 250, PLANO, TX 75093. (This correspondent recurs in this chain.)
  • Context: Transfer between entities, potentially for assertion purposes.

Timeline diagram

timeline
    title Ownership of US 11894098
    2012 : Priority Date
    2021 : Application filed by Etron
    2023 : Executed to VALUECREATION
    2024 : Patent Issued
    2025 : VALUECREATION recorded
         : Executed to WECREVENTION
         : WECREVENTION recorded

NPE / troll-pattern signals

1. Shell-entity transfer — present.

   • 2023-05-18 (executed) / recorded 2025-09-08 — Reel 072191/0362: ETRON TECHNOLOGY, INC. (operating company) assigned to VALUECREATION TECHNOLOGY, INC. The assignee name "VALUECREATION TECHNOLOGY, INC." with a Texas correspondent suggests a non-operating entity.
   • 2025-05-01 (executed) / recorded 2025-09-11 — Reel 072228/0328: VALUECREATION TECHNOLOGY, INC. assigned to WECREVENTION, INC. The assignee name "WECREVENTION, INC." also with a Texas address and the same correspondent further suggests a shell entity specializing in assertion.

2. Known asserter in the chain — unclear. While the names "VALUECREATION TECHNOLOGY, INC." and "WECREVENTION, INC." are suggestive of NPEs, I do not have current information from RPX Insurance or Unified Patents' asserter directories to confirm if these specific entities are publicly recognized as high-frequency plaintiffs or known NPEs.

3. Repeat correspondent across the chain — present. Jeffrey H. Rosedale, JEFFREY H. ROSEDALE, 5500 PRESTON RD, SUITE 250, PLANO, TX 75093, appears as the correspondent for both assignments:

   • Reel 072191/0362 (Etron Technology Inc. to VALUECREATION TECHNOLOGY, INC.)
   • Reel 072228/0328 (VALUECREATION TECHNOLOGY, INC. to WECREVENTION, INC.)
     This recurrence across transfers to different entities within the same chain is a strong signal.

4. Cascading transfers — present. There are two consecutive assignments within a short period (three days recorded, 2025-09-08 and 2025-09-11, with execution dates May 2023 and May 2025). The assignees, VALUECREATION TECHNOLOGY, INC. and WECREVENTION, INC., share the same correspondent attorney and address.

5. Pre-litigation transfer — present. The patent was granted on 2024-02-06. The assignments were recorded in September 2025. Google Patents shows multiple litigation cases filed in Texas Eastern and Western District Courts starting in 2025-09. This timing (assignments recorded right before or very close to litigation filings) is highly indicative of pre-litigation transfer. For example, a US case was filed in Texas Western District Court (7:25-cv-00458) and others in Texas Eastern District Court (2:25-cv-01008, 2:25-cv-01040, 2:25-cv-00951) in 2025, which closely follows the assignment recording dates of September 8 and 11, 2025.

6. Bankruptcy fire-sale — not present. Etron Technology Inc. is an active, publicly-traded company.

7. Privateering — unclear. While the transfers from an operating company to what appear to be shell entities could facilitate privateering, there is no direct evidence (e.g., SEC filings or specific reporting) confirming such an arrangement.

8. Defensive aggregator (anti-NPE) — not present. The chain ends with WECREVENTION, INC., which is not a known defensive aggregator.

Verdict

NPE — high confidence

This verdict is justified by multiple strong signals: the patent moved from an operating company (Etron Technology Inc.) to two distinct entities (VALUECREATION TECHNOLOGY, INC. and WECREVENTION, INC.) in a cascading series of transfers within days of each other, all handled by the same correspondent attorney based in Plano, Texas. Crucially, these assignments were recorded in September 2025, immediately preceding multiple infringement suits filed against this patent in Texas courts starting in September 2025. [cite: https://patents.google.com/patent/[US11894098](/patent/US11894098)/en]

For verification of assignment records, please visit the USPTO Assignment Center and search for patent number 11894098: https://assignmentcenter.uspto.gov/