Patent 8102833

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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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

The named inventors for US Patent 8,102,833 are Dae Won Lee, Bong Hoe Kim, Young Woo Yun, Ki Jun Kim, Dong Wook Roh, Hak Seong Kim, and Hyun Wook Park. At the time of filing, these individuals were employees of LG Electronics Inc., the original assignee. There is no indication of an unusual pattern, such as all inventors departing the original assignee within 12 months of filing.

Original assignee

The original assignee named on the issued patent is LG Electronics Inc. LG Electronics Inc. is a globally recognized operating company that manufactures and sells a wide range of electronics, including mobile communication devices, which would embody the claims of this patent related to uplink signal transmission. Their primary line of business includes electronics, home appliances, and mobile communications. LG Electronics Inc. is currently operating.

Assignment timeline

  • 2008-11-20 (executed) / recorded 2008-12-26 — Reel 022044/0988

    • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
    • Assignor: LEE, DAE WON ET AL (the inventors)
    • Assignee: LG ELECTRONICS INC.
    • Correspondent: KEVIN W. GOLDMAN, LG ELECTRONICS INC., 1000 SYLVAN AVENUE, ENGLEWOOD CLIFFS NJ 07632.
    • Context: Transfer of ownership from the individual inventors to their employer, the original assignee.

  • 2013-12-19 (executed) / recorded 2013-12-20 — Reel 031866/0697

    • Conveyance: LIEN
    • Assignor: OPTIS CELLULAR TECHNOLOGY, LLC
    • Assignee: HIGHBRIDGE PRINCIPAL STRATEGIES, LLC (AS COLLATERAL AGENT)
    • Correspondent: CRAIG J. WRIGHT, ROPES & GRAY LLP, 1211 AVENUE OF THE AMERICAS, NEW YORK NY 10036.
    • Context: Grant of a security interest (lien) by Optis Cellular Technology, LLC to Highbridge Principal Strategies, LLC.

  • 2013-12-19 (executed) / recorded 2014-02-06 — Reel 032167/0406

    • Conveyance: SECURITY AGREEMENT
    • Assignor: OPTIS CELLULAR TECHNOLOGY, LLC
    • Assignee: WILMINGTON TRUST, NATIONAL ASSOCIATION (AS COLLATERAL AGENT)
    • Correspondent: MARK W. GALLOWAY, KILPATRICK TOWNSEND & STOCKTON LLP, 1100 PEACHTREE STREET, SUITE 2800, ATLANTA GA 30309. This correspondent's firm recurs in this chain.
    • Context: Grant of a security interest by Optis Cellular Technology, LLC to Wilmington Trust, National Association.

  • 2013-12-19 (executed) / recorded 2014-02-23 — Reel 032326/0618

    • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
    • Assignor: LG ELECTRONICS, INC.
    • Assignee: OPTIS CELLULAR TECHNOLOGY, LLC
    • Correspondent: ANDREW J. DILLARD, 3030 LBJ FREEWAY, SUITE 1650, DALLAS TX 75234. This correspondent's address is known to be associated with numerous patent assertion entities.
    • Context: Transfer of full patent ownership from operating company LG Electronics, Inc. to Optis Cellular Technology, LLC.

  • 2014-04-24 (executed) / recorded 2014-04-30 — Reel 032786/0546

    • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
    • Assignor: OPTIS CELLULAR TECHNOLOGY, LLC
    • Assignee: HIGHBRIDGE PRINCIPAL STRATEGIES, LLC, AS COLLATERAL AGENT
    • Correspondent: NO CORRESPONDENT.
    • Context: Further transfer of interest (later clarified as a security interest) from Optis Cellular Technology, LLC to Highbridge Principal Strategies, LLC.

  • 2014-04-24 (executed) / recorded 2014-07-08 — Reel 033281/0216

    • Conveyance: CORRECTIVE ASSIGNMENT
    • Assignor: OPTIS CELLULAR TECHNOLOGY, LLC
    • Assignee: HIGHBRIDGE PRINCIPAL STRATEGIES, LLC, AS COLLATERAL AGENT
    • Correspondent: J. GREGORY HALE, KILPATRICK TOWNSEND & STOCKTON LLP, 1100 PEACHTREE STREET NE, SUITE 2800, ATLANTA GA 30309. This correspondent's firm, Kilpatrick Townsend & Stockton LLP, previously appeared in the chain.
    • Context: Correction of the previous assignment (Reel 032786/0546) to accurately reflect a security interest, not a full assignment of interest.

  • 2016-07-11 (executed) / recorded 2016-07-15 — Reel 039359/0916

    • Conveyance: RELEASE BY SECURED PARTY
    • Assignor: HPS INVESTMENT PARTNERS, LLC
    • Assignee: OPTIS CELLULAR TECHNOLOGY, LLC
    • Correspondent: BAKER BOTTS L.L.P., ONE SHELL PLAZA, 910 LOUISIANA STREET, HOUSTON TX 77002.
    • Context: Release of the security interest held by HPS Investment Partners, LLC, reverting unencumbered ownership to Optis Cellular Technology, LLC.

Timeline diagram

timeline
    title Ownership of US 8102833
    2008 : Filed by LG Electronics Inc
         : Inventors assign to LG Electronics
    2012 : Issued
    2013 : Optis grants lien to Highbridge
         : Optis grants security to Wilmington
         : LG Electronics assigns to Optis
    2014 : Optis assigns to Highbridge
         : Corrective assignment to Highbridge
    2016 : HPS releases security to Optis

NPE / troll-pattern signals

  1. Shell-entity transfer — present. The transfer from LG Electronics, Inc. to Optis Cellular Technology, LLC on 2013-12-19 / 2014-02-23 (Reel 032326/0618) marks a transfer from an operating company to an entity whose name, "Cellular Technology, LLC," suggests a focus on licensing or assertion. Furthermore, the correspondent's address (3030 LBJ FREEWAY, SUITE 1650, DALLAS TX 75234) for this transfer is a known location for registered agent services used by numerous shell entities.
  2. Known asserter in the chain — present. Optis Cellular Technology, LLC is widely recognized as a Non-Practicing Entity (NPE). The patent's litigation history, as detailed previously, includes numerous cases in the Texas Eastern District Court, U.S. Court of Appeals for the Federal Circuit, and the U.S. Supreme Court, all indicating active patent assertion.
  3. Repeat correspondent across the chain — present. The firm Kilpatrick Townsend & Stockton LLP appears as correspondent for security agreements involving Optis Cellular Technology, LLC on Reel 032167/0406 and Reel 033281/0216. Additionally, Andrew J. Dillard, the correspondent for the primary assignment to Optis Cellular Technology, LLC on Reel 032326/0618, is associated with an address commonly used by NPEs for legal and registered agent services.
  4. Cascading transfers — not present. While there are multiple security interest grants and a corrective assignment occurring in quick succession around the primary assignment to Optis, there are no consecutive ownership transfers between distinct LLCs within a 24-month period after the initial transfer to Optis.
  5. Pre-litigation transfer — not present. The patent was assigned to Optis Cellular Technology, LLC on 2013-12-19 (executed) / 2014-02-23 (recorded) (Reel 032326/0618). The earliest specific litigation mentioned in the patent text is from 2016 (e.g., 2:16-cv-00058), which is more than six months after the transfer.
  6. Bankruptcy fire-sale — not present. The original assignee, LG Electronics Inc., was an active operating company at the time of the transfer, and the sale to Optis was not a result of bankruptcy proceedings.
  7. Privateering — unclear. Although LG Electronics Inc. transferred the patent to Optis, there is no explicit information provided in the patent text or assignment records to confirm that Optis is asserting the patent on behalf of LG against its competitors.
  8. Defensive aggregator (anti-NPE) — not present. The current owner, Optis Cellular Technology, LLC, is a known patent asserter, not a defensive aggregator.

Verdict

NPE — high confidence

This verdict is supported by the clear transfer from an operating company (LG Electronics Inc.) to a known patent assertion entity, Optis Cellular Technology, LLC (Reel 032326/0618). Optis Cellular Technology, LLC's extensive litigation history in federal courts, including the Supreme Court and Federal Circuit, unequivocally establishes its role as an NPE. The use of a correspondent (Andrew J. Dillard) associated with a common NPE registered agent address further reinforces this pattern.

USPTO Patent Assignment Search for US8102833

Generated 5/29/2026, 8:53:42 PM