Assignment history

Inventors

• Dong-Young Park (LS Cable and Systems Ltd.)
• Sung-Wook Moon (LS Cable and Systems Ltd.)
• Sung-wook Choi (LS Cable and Systems Ltd.)
• Gwang-Hee Gwon (LS Cable and Systems Ltd.)
• Sub Han (LS Cable and Systems Ltd.)
• Jung-Bum Kim (LS Cable and Systems Ltd.)

All inventors were employees of LS Cable and Systems Ltd. at the time of filing, as indicated by the assignment records.

Original assignee

The original assignee on the issued patent is LS Cable and Systems Ltd.. LS Cable & System is a South Korea-based industrial corporation and one of the largest cable manufacturers globally. Their products include power and telecommunication cables and systems, integrated modules, and other related industrial materials. They also provide engineering services, installation, and commissioning of high voltage and extra-high voltage landlines, as well as turnkey submarine cabling project execution. The company is currently operating.

Assignment timeline

• 2008-06-17 (executed) / recorded 2008-06-17 — Reel 021115/0500
  • Conveyance: Assignment
  • Assignor: CHOI, SUNG-WOOK; GWON, GWANG-HEE; HAN, SUB; KIM, JUNG-BUM; MOON, SUNG-WOOK; PARK, DONG-YOUNG
  • Assignee: LS CABLE LTD.
  • Correspondent: LS CABLE LTD.
  • Context: Transfer of inventors' interest to the original assignee.
• 2018-07-17 (executed) / recorded 2018-07-17 — Reel 043818/0609
  • Conveyance: Reassignment
  • Assignor: LS CORPORATION
  • Assignee: LS CABLE & SYSTEM LTD.
  • Correspondent: HANNAH M. KIM, ESQ.
  • Context: Reassignment from LS Corporation to LS Cable & System Ltd.
• 2018-07-17 (executed) / recorded 2018-07-17 — Reel 043818/0610
  • Conveyance: Change of Name
  • Assignor: LS CABLE LTD.
  • Assignee: LS CORPORATION
  • Correspondent: HANNAH M. KIM, ESQ. This correspondent appears multiple times in the assignment chain.
  • Context: Change of name from LS Cable Ltd. to LS Corporation.
• 2021-03-03 (executed) / recorded 2021-03-03 — Reel 053072/0638
  • Conveyance: Confirmatory Assignment
  • Assignor: PARK, DONG-YOUNG
  • Assignee: LS CABLE & SYSTEM LTD.
  • Correspondent: ANNA H. Y. HONG, ESQ. This correspondent appears multiple times in the assignment chain.
  • Context: Confirmatory assignment from inventor to current assignee.
• 2021-03-03 (executed) / recorded 2021-03-03 — Reel 053072/0639
  • Conveyance: Confirmatory Assignment
  • Assignor: CHOI, SUNG-WOOK
  • Assignee: LS CABLE & SYSTEM LTD.
  • Correspondent: ANNA H. Y. HONG, ESQ. This correspondent appears multiple times in the assignment chain.
  • Context: Confirmatory assignment from inventor to current assignee.
• 2021-03-03 (executed) / recorded 2021-03-03 — Reel 053072/0640
  • Conveyance: Confirmatory Assignment
  • Assignor: GWON, GWANG-HEE
  • Assignee: LS CABLE & SYSTEM LTD.
  • Correspondent: ANNA H. Y. HONG, ESQ. This correspondent appears multiple times in the assignment chain.
  • Context: Confirmatory assignment from inventor to current assignee.
• 2021-03-03 (executed) / recorded 2021-03-03 — Reel 053072/0641
  • Conveyance: Confirmatory Assignment
  • Assignor: HAN, SUB
  • Assignee: LS CABLE & SYSTEM LTD.
  • Correspondent: ANNA H. Y. HONG, ESQ. This correspondent appears multiple times in the assignment chain.
  • Context: Confirmatory assignment from inventor to current assignee.
• 2021-03-03 (executed) / recorded 2021-03-03 — Reel 053072/0642
  • Conveyance: Confirmatory Assignment
  • Assignor: KIM, JUNG-BUM
  • Assignee: LS CABLE & SYSTEM LTD.
  • Correspondent: ANNA H. Y. HONG, ESQ. This correspondent appears multiple times in the assignment chain.
  • Context: Confirmatory assignment from inventor to current assignee.
• 2021-03-03 (executed) / recorded 2021-03-03 — Reel 053072/0643
  • Conveyance: Confirmatory Assignment
  • Assignor: MOON, SUNG-WOOK
  • Assignee: LS CABLE & SYSTEM LTD.
  • Correspondent: ANNA H. Y. HONG, ESQ. This correspondent appears multiple times in the assignment chain.
  • Context: Confirmatory assignment from inventor to current assignee.
• 2021-03-03 (executed) / recorded 2021-03-03 — Reel 053072/0644
  • Conveyance: Confirmatory Assignment
  • Assignor: LS CORPORATION
  • Assignee: LS CABLE & SYSTEM LTD.
  • Correspondent: ANNA H. Y. HONG, ESQ. This correspondent appears multiple times in the assignment chain.
  • Context: Confirmatory assignment from prior assignee to current assignee.
• 2021-03-03 (executed) / recorded 2021-03-03 — Reel 053072/0645
  • Conveyance: Supplemental Assignment
  • Assignor: MOON, SUNG-WOOK; KIM, JUNG-BUM; HAN, SUB; PARK, DONG-YOUNG; CHOI, SUNG-WOOK; GWON, GWANG-HEE
  • Assignee: LS CABLE & SYSTEM LTD.
  • Correspondent: ANNA H. Y. HONG, ESQ. This correspondent appears multiple times in the assignment chain.
  • Context: Supplemental assignment from inventors to current assignee.

Timeline diagram

timeline
    title Ownership of US 8013568
    2008 : Assigned to LS CABLE LTD
    2011 : Issued
    2018 : LS CABLE LTD changed to LS CORP
         : Assigned to LS CABLE & SYSTEM LTD
    2021 : Confirmatory assignment from inventors
         : Supplemental assignment from inventors

NPE / troll-pattern signals

1. Shell-entity transfer — not present. The transfers are between variations of the same corporate entity (LS Cable Ltd., LS Corporation, LS Cable & System Ltd.), indicating internal corporate restructuring or name changes rather than transfers to shell licensing entities.
2. Known asserter in the chain — not present. LS Cable & System Ltd. is an operating company, not identified as a known patent asserter (NPE) on public lists.
3. Repeat correspondent across the chain — present. Hannah M. Kim, Esq. appears as the correspondent for reel 043818/0609 and 043818/0610. Anna H. Y. Hong, Esq. appears as the correspondent for reels 053072/0638, 053072/0639, 053072/0640, 053072/0641, 053072/0642, 053072/0643, 053072/0644, and 053072/0645. This recurrence suggests consistent legal representation for LS Cable & System Ltd. and its related entities.
4. Cascading transfers — not present. While there are multiple assignments in 2021, these are largely confirmatory and supplemental assignments from the original inventors and previous corporate names to the current operating entity, LS Cable & System Ltd., and not transfers through chained LLCs.
5. Pre-litigation transfer — unclear. There is litigation associated with this patent family (IPR2025-01141 and a US case in California Northern District Court). However, the specific dates of litigation filings relative to the assignments are not provided with enough granularity to definitively confirm pre-litigation transfers.
6. Bankruptcy fire-sale — not present. LS Cable & System Ltd. is listed as an operating company.
7. Privateering — not present. There is no indication that LS Cable & System Ltd. has transferred this patent to an NPE to assert on its behalf.
8. Defensive aggregator (anti-NPE) — not present. The chain ends with LS Cable & System Ltd., an operating company.

Verdict

Insufficient data. While there is a strong "repeat correspondent across the chain" signal with Anna H. Y. Hong, Esq. appearing for numerous confirmatory assignments, the overall pattern of transfers primarily reflects internal corporate restructuring and name changes of the original operating company (LS Cable and Systems Ltd. and its predecessors). There is no definitive evidence of transfer to a known NPE or shell entity, nor clear indications of typical NPE assertion patterns. The patent is currently active and held by an operating company.