Patent 12243948

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 (1)

Asserters network →

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

2024-09-03 · Assignment
W&W SENS DEVICES, INC.W&W SENS DEVICES, INC.
internal reorg

Assignment history

✓ Generated

Inventors

Shih-Yuan Wang (W&W Sens Devices Inc.)
Shih-Ping Wang (W&W Sens Devices Inc.)

Original assignee

The original assignee is W&W Sens Devices Inc. It is unclear from the provided information whether W&W Sens Devices Inc. ships a product embodying the claims of US12243948. Their primary line of business appears to be related to sens devices, as suggested by their name. Their current status is "Active" as per the legal status information on Google Patents.

Assignment timeline

2024-09-03 (executed) / recorded 2024-09-03
- Conveyance: Assignment
- Assignor: W&W Sens Devices Inc.
- Assignee: W& W Sens Devices
- Correspondent: Not specified in the provided text.
- Context: Internal reorg (Assignee name is a slight variation of the Assignor, indicating a potential internal transfer or naming adjustment).

If additional assignment records were available via USPTO Assignment Search, they would be listed here.

Timeline diagram

timeline
    title Ownership of US 12243948
    2024 : Filed by W&W Sens Devices Inc
         : Assigned to W& W Sens Devices
    2025 : Issued
    2026 : PTAB case instituted

NPE / troll-pattern signals

Shell-entity transfer — unclear. While "W& W Sens Devices" is a slight variation of the original assignee, there's no explicit information about it being a licensing-only LLC, its products, address, or corporate structure in the provided text to definitively label it a shell entity. The name itself is not strongly indicative of a shell entity.
Known asserter in the chain — not present. The assignees "W&W Sens Devices Inc." and "W& W Sens Devices" do not match any commonly known NPEs in public lists.
Repeat correspondent across the chain — unclear. The correspondent information is not explicitly provided for the assignment record, so recurrence cannot be assessed.
Cascading transfers — not present. There is only one recorded assignment listed, making cascading transfers impossible to observe.
Pre-litigation transfer — not present. The assignment was recorded on 2024-09-03, and the PTAB case was filed on August 28, 2025. This transfer occurred more than 6 months before the first litigation filing.
Bankruptcy fire-sale — not present. There is no indication of bankruptcy proceedings for W&W Sens Devices Inc.
Privateering — unclear. There is no information provided to suggest an operating company transferred the patent to an NPE for assertion against competitors.
Defensive aggregator (anti-NPE) — not present. The current assignee is not a known defensive aggregator.

Verdict

Insufficient data. Only one assignment record is explicitly detailed, showing a transfer between entities with very similar names. Without more extensive assignment records from the USPTO and additional context on the business activities of "W& W Sens Devices", it is not possible to confidently classify this patent as being asserted by an NPE or an operating company, or as a defensive play.

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

Generated 5/22/2026, 6:46:31 PM