Assignment history

Inventors

• Weng-Dah Ken: At the time of filing (2012), an inventor at Etron Technology Inc.
• Chao-Chun Lu: At the time of filing (2012), an inventor at Etron Technology Inc.
• Jan-Mye Sung: At the time of filing (2012), an inventor at Etron Technology Inc.

No unusual patterns, such as inventors departing within 12 months of filing, are immediately apparent.

Original assignee

The original assignee named on the issued patent is Etron Technology Inc..

Etron Technology Inc. is a Taiwanese fabless integrated circuit (IC) design and product company, founded in 1991. They specialize in buffer memory, logic chip designs, electronic applications, and system-on-chips. Their product portfolio includes various types of DRAM (Commercial, Industrial, Automotive, Known Good Die, Innovative DRAM) and Logic ICs (USB, 3D Sensing). Etron is a publicly traded company on the Taipei Exchange (TPEx: 5351.TW) and is actively operating.

Assignment timeline

• 2012-12-03 (executed) / recorded 2012-12-03 — Reel 030141/0724

  • Conveyance: Assignment of Assignors Interest
  • Assignor: Ken, Weng-Dah; Lu, Chao-Chun; Sung, Jan-Mye
  • Assignee: ETRON TECHNOLOGY, INC.
  • Correspondent: SUITE 218 6767 W. GREENFIELD AVE., MILWAUKEE, WI 53214
  • Context: Original assignment from inventors to the filing company.

• 2025-09-08 (executed) / recorded 2025-09-08 — Reel 066708/0970

  • Conveyance: Assignment of Assignor's Interest
  • Assignor: ETRON TECHNOLOGY, INC.
  • Assignee: VALUECREATION TECHNOLOGY, INC.
  • Correspondent: WECREVENTION, INC. C/O CPA GLOBAL, 1500 EYE STREET, NW, SUITE 1000, WASHINGTON, DISTRICT OF COLUMBIA, 20005
  • Context: Transfer from original assignee to an entity whose name suggests a focus on value realization.

• 2025-09-11 (executed) / recorded 2025-09-11 — Reel 066708/0971

  • Conveyance: Assignment of Assignor's Interest
  • Assignor: VALUECREATION TECHNOLOGY, INC.
  • Assignee: WECREVENTION, INC.
  • Correspondent: WECREVENTION, INC. C/O CPA GLOBAL, 1500 EYE STREET, NW, SUITE 1000, WASHINGTON, DISTRICT OF COLUMBIA, 20005. This correspondent recurred for Valuecreation Technology, Inc. and Wecrevention, Inc.
  • Context: Rapid transfer between two entities, likely related, ending with the current assignee.

Timeline diagram

timeline
    title Ownership of US 9201834
    2012 : Filed by Etron Technology Inc
         : Assigned from inventors to Etron Technology Inc
    2015 : Issued to Etron Technology Inc
    2025 : Assigned to Valuecreation Technology Inc
         : Assigned to Wecrevention Inc
    2026 : PTAB case IPR2026-00240 filed

NPE / troll-pattern signals

1. Shell-entity transfer — Present. The transfer from Etron Technology Inc. to Valuecreation Technology, Inc. (Reel 066708/0970) and then immediately to Wecrevention, Inc. (Reel 066708/0971) suggests shell entities. "Valuecreation Technology, Inc." and "Wecrevention, Inc." have names that could indicate a focus on patent monetization or licensing rather than product development. Etron Technology is a fabless IC design company that produces physical products, whereas a quick search for "Valuecreation Technology, Inc." indicates a business that focuses on strategic planning and maximizing business value (often including intellectual property), and "Wecrevention Inc" is listed in litigation platforms with active cases against companies like Apple and Dell. Neither Valuecreation Technology, Inc. nor Wecrevention, Inc. appear to be product-shipping companies based on available information, and they do not have SEC filings (10-K/8-K). The correspondent's address for both assignments is "C/O CPA GLOBAL, 1500 EYE STREET, NW, SUITE 1000, WASHINGTON, DISTRICT OF COLUMBIA, 20005," which is consistent with a registered-agent service.
2. Known asserter in the chain — Present. Wecrevention Inc. is listed as having active litigation cases against companies like Apple Inc. and Dell Inc.. While not explicitly on standard NPE lists like Unified Patents or RPX in the provided search results, its litigation activity strongly indicates an assertion-focused entity. Unified Patents is an organization whose goal is promoting innovation by protecting against frivolous patent litigation and reducing the number of non-practicing entity (NPE) patent assertions.
3. Repeat correspondent across the chain — Present. The correspondent "WECREVENTION, INC. C/O CPA GLOBAL, 1500 EYE STREET, NW, SUITE 1000, WASHINGTON, DISTRICT OF COLUMBIA, 20005" appears on both the assignment to Valuecreation Technology, Inc. (Reel 066708/0970) and the subsequent assignment to Wecrevention, Inc. (Reel 066708/0971). This suggests a common legal representative for these entities.
4. Cascading transfers — Present. There were two consecutive assignments within three days in September 2025: from Etron Technology, Inc. to Valuecreation Technology, Inc. on September 8, 2025 (Reel 066708/0970), and then to Wecrevention, Inc. on September 11, 2025 (Reel 066708/0971). These transfers also shared the same correspondent address, strengthening the signal.
5. Pre-litigation transfer — Present. The assignments to Valuecreation Technology, Inc. (2025-09-08, Reel 066708/0970) and Wecrevention, Inc. (2025-09-11, Reel 066708/0971) occurred just months before multiple infringement suits were filed in Texas in 2025, and a PTAB IPR case was filed in 2026. This timing suggests the transfers were made to facilitate assertion.
6. Bankruptcy fire-sale — Not present. There is no indication of Etron Technology Inc. filing for bankruptcy. Etron is a publicly traded company that is actively operating.
7. Privateering — Unclear. While the transfer is from an operating company (Etron) to what appears to be an NPE (Wecrevention), there's no explicit information from SEC filings or other public sources to confirm if Etron is using Wecrevention to assert the patent on its behalf against competitors. Etron Technology Inc.'s latest SEC filings are from 2023, and do not mention any privateering activities.
8. Defensive aggregator (anti-NPE) — Not present. The chain ends with Wecrevention Inc., which is actively engaged in patent litigation, not a defensive aggregation entity like Unified Patents or RPX.

Verdict

NPE — high confidence. The presence of multiple strong signals, including shell-entity transfers to "Valuecreation Technology, Inc." and "Wecrevention, Inc." in September 2025 (Reel 066708/0970, 066708/0971), cascading transfers within days, a known asserter (Wecrevention Inc.) engaging in active litigation, and the pre-litigation timing of these transfers relative to the 2025 Texas lawsuits and 2026 IPR, strongly indicate an NPE assertion pattern.

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