Patent 8408778

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 (3)

Asserters network →

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

  1. 2009-12-24 · recorded 2010-02-02 · reel 023885/0733 · ASSIGNMENT

    PARK, HYUNG HWALG INNOTEK CO., LTD.

    Correspondent: · BAE, KIM & LEE IP GROUP

    Transfer from inventor to original assignee.

  2. 2021-05-20 · recorded 2021-05-25 · reel 056366/0335 · ASSIGNMENT OF ASSIGNORS INTEREST

    LG INNOTEK CO., LTD.SUZHOU LEKIN SEMICONDUCTOR CO., LTD.

    Fire-sale.

  3. 2024-06-25 · recorded 2024-07-10 · reel 067949/0047 · ASSIGNMENT OF ASSIGNORS INTEREST

    SUZHOU LEKIN SEMICONDUCTOR CO., LTD.LIGHT GUIDE INNOVATIONS LLC

    Correspondent: · PATTERSON & SHERIDAN

    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

  • Hyung Hwa Park (LG Innotek Co Ltd)

Original assignee

LG Innotek Co Ltd was the original assignee. LG Innotek is a global materials and components manufacturer, part of the LG Group, and is known for producing components for various electronic devices, including display devices. It is an operating company.

Assignment timeline

  • 2009-12-24 (executed) / recorded 2010-02-02 — Reel 023885/0733
    • Conveyance: ASSIGNMENT
    • Assignor: PARK, HYUNG HWA
    • Assignee: LG INNOTEK CO., LTD.
    • Correspondent: BAE, KIM & LEE IP GROUP, 11TH FL., CITY AIR TOWER, 159-9 SAMSUNG-DONG, KANGNAM-KU, SEOUL, KOREA
    • Context: Transfer from inventor to original assignee.
  • 2021-05-20 (executed) / recorded 2021-05-25 — Reel 056366/0335
    • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
    • Assignor: LG INNOTEK CO., LTD.
    • Assignee: SUZHOU LEKIN SEMICONDUCTOR CO., LTD.
    • Correspondent: SUZHOU LEKIN SEMICONDUCTOR CO., LTD., NO. 18, YINHE ROAD, NANJING, JIANGSU, CHINA
    • Context: Fire-sale.
  • 2024-06-25 (executed) / recorded 2024-07-10 — Reel 067949/0047
    • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
    • Assignor: SUZHOU LEKIN SEMICONDUCTOR CO., LTD.
    • Assignee: LIGHT GUIDE INNOVATIONS LLC
    • Correspondent: PATTERSON & SHERIDAN, L.L.P., 24 GREENWAY PLAZA, SUITE 1600, HOUSTON, TX, UNITED STATES
    • Context: Transfer to asserter.

Timeline diagram

timeline
    title Ownership of US 8408778
    2009 : Assigned to LG Innotek Co Ltd
    2013 : Issued
    2021 : Assigned to Suzhou Lekin Semiconductor Co Ltd
    2024 : Assigned to Light Guide Innovations LLC

NPE / troll-pattern signals

  1. Shell-entity transfer — present. The transfer from Suzhou Lekin Semiconductor Co., Ltd. to Light Guide Innovations LLC (reel 067949/0047, executed 2024-06-25) suggests this. Light Guide Innovations LLC, with "Innovations LLC" in its name and a Texas address, aligns with typical shell entity naming and location for assertion.
  2. Known asserter in the chain — present. Light Guide Innovations LLC has initiated litigation, as indicated by the US case filed in the Texas Eastern District Court and the IPR filed against the patent [cite: https://patents.google.com/patent/[US8408778](/patent/US8408778)/en]. This aligns with behavior of a patent assertion entity.
  3. Repeat correspondent across the chain — not present. The correspondents for each assignment are different. BAE, KIM & LEE IP GROUP for the first (reel 023885/0733), SUZHOU LEKIN SEMICONDUCTOR CO., LTD. directly for the second (reel 056366/0335), and PATTERSON & SHERIDAN, L.L.P. for the third (reel 067949/0047).
  4. Cascading transfers — not present. There are significant time gaps between the assignments (2009-2021, 2021-2024).
  5. Pre-litigation transfer — unclear. The district court litigation was filed in 2025 (case 2:25-cv-00312), and the IPR was filed on 2025-09-10. The assignment to Light Guide Innovations LLC was executed on 2024-06-25 and recorded on 2024-07-10 (reel 067949/0047). This timing is outside the typical 6-month window for a clear pre-litigation transfer signal, but still precedes the litigation.
  6. Bankruptcy fire-sale — not present. No indication of bankruptcy for LG Innotek Co., Ltd. or Suzhou Lekin Semiconductor Co., Ltd.
  7. Privateering — unclear. While the patent moved from an operating company (LG Innotek) to another entity (Suzhou Lekin) and then to Light Guide Innovations LLC, there's no public evidence to suggest that Light Guide Innovations LLC is asserting the patent on behalf of LG Innotek or Suzhou Lekin.
  8. Defensive aggregator (anti-NPE) — not present. The patent is currently owned by Light Guide Innovations LLC, which appears to be an asserting entity, not a defensive aggregator.

Verdict

NPE — high confidence. The presence of a known asserter (Light Guide Innovations LLC) and the shell-entity transfer, coupled with active litigation filings [cite: https://patents.google.com/patent/US8408778/en], strongly indicate that this patent is being used for assertion purposes. The assignment to Light Guide Innovations LLC was recorded on 2024-07-10 (reel 067949/0047), preceding known litigation in 2025.

For verification, see the USPTO Assignment Center search for US8408778: https://assignmentcenter.uspto.gov/#!/assignment-view/8408778

Generated 5/24/2026, 12:46:32 AM