Patent 10108277

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.

  1. 2018-06-25 · recorded 2018-10-12 · reel 042217/0400 · Assignment

    WACOM CO., LTD.WACOM CO., LTD.

    Correspondent: DANIEL E. MCNAMARA · CHRISTENSEN O'CONNOR JOHNSON KINDNESS

    internal reorg

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

  • Yasuo Oda (Wacom Co Ltd)
  • Sadao Yamamoto (Wacom Co Ltd)
  • Yoshihisa Sugiyama (Wacom Co Ltd)

All inventors were presumably employed by Wacom Co Ltd, the original assignee, at the time of filing, as is common practice. No unusual patterns are immediately evident.

Original assignee

Wacom Co Ltd. Wacom is a global company known for producing interactive pen displays, pen tablets, and styluses, products which embody the claims of US10108277, particularly those related to pointer and position detection using electrostatic coupling. Wacom Co Ltd is currently an operating company.

Assignment timeline

  • 2018-06-25 (executed) / recorded 2018-10-12 — Reel 042217/0400
    • Conveyance: Assignment
    • Assignor: Wacom Co., Ltd.
    • Assignee: Wacom Co., Ltd.
    • Correspondent: DANIEL E. MCNAMARA, CHRISTENSEN O'CONNOR JOHNSON KINDNESS, 1201 THIRD AVENUE, SUITE 3600, SEATTLE, WA 98101.
    • Context: Internal corporate record keeping or clarification of ownership within the same entity.

The USPTO Assignment Center shows only one recorded assignment for US10108277, an internal transfer from Wacom Co., Ltd. to Wacom Co., Ltd.

Timeline diagram

timeline
    title Ownership of US 10108277
    2010 : Priority date
    2016 : Application filed by Wacom
    2018 : Internal assignment at Wacom
         : Patent granted to Wacom
    2024 : US litigation filed
    2025 : IPR case filed

NPE / troll-pattern signals

  1. Shell-entity transfer — Not present. The only recorded assignment is an internal transfer within Wacom Co., Ltd., an operating company.
  2. Known asserter in the chain — Not present. Wacom Co., Ltd. is the current assignee and is not recognized as a patent assertion entity (NPE).
  3. Repeat correspondent across the chain — Unclear. Only one assignment record exists, handled by DANIEL E. MCNAMARA, CHRISTENSEN O'CONNOR JOHNSON KINDNESS. There is insufficient data to determine if this correspondent recurs in this chain or other tracked patents as an NPE signal.
  4. Cascading transfers — Not present. There is only one recorded internal assignment, not multiple consecutive transfers.
  5. Pre-litigation transfer — Not present. The internal assignment was recorded in October 2018, significantly preceding the first US litigation identified in 2024. Wacom remains the assignee in the recorded litigation.
  6. Bankruptcy fire-sale — Not present. Wacom Co., Ltd. is an active, operating company, and there is no indication of bankruptcy proceedings.
  7. Privateering — Unclear. While litigation is present, there is no evidence of Wacom transferring the patent to an NPE for assertion on its behalf. Wacom remains the direct assignee.
  8. Defensive aggregator (anti-NPE) — Not present. The patent is still held by Wacom Co., Ltd., not a defensive aggregator.

Verdict

Operating-company assertion
The patent US10108277 is currently owned by its original assignee, Wacom Co Ltd, a recognized operating company in the field of digital pens and tablets. The only recorded assignment (Reel 042217/0400, recorded 2018-10-12) is an internal transfer within Wacom. The recent litigation history suggests direct assertion by Wacom, an operating company, rather than via an NPE.

Verification: USPTO Assignment Center Search for US10108277

Generated 5/24/2026, 6:48:14 PM